Friday, April 22, 2011

How to fix error code 0x80070424 defender

Error code 0x80070424 means that the BITS service (required by Windows Update) is not running.

Solution:
  • Type services.msc in the start search box 
  • Click on the icon. 
  • When the window opens, right click on Bitlocker
  • Choose properties and set it to manual. 

Tuesday, March 29, 2011

System Error Code 100 to Code 199

System error codes will appear in software programs and in various areas within the Windows operating system after certain errors occur.

Error Code 100
  • System error code 100 means "Cannot create another system semaphore." This error code may also display as "ERROR_TOO_MANY_SEMAPHORES" or as the value 0x64.
Error Code 101
  • System error code 101 means "The exclusive semaphore is owned by another process." This error code may also display as "ERROR_EXCL_SEM_ALREADY_OWNED" or as the value 0x65.
Error Code 102
  • System error code 102 means "The semaphore is set and cannot be closed." This error code may also display as "ERROR_SEM_IS_SET" or as the value 0x66.
Error Code 103
  • System error code 103 means "The semaphore cannot be set again." This error code may also display as "ERROR_TOO_MANY_SEM_REQUESTS" or as the value 0x67.
Error Code 104
  • System error code 104 means "Cannot request exclusive semaphores at interrupt time." This error code may also display as "ERROR_INVALID_AT_INTERRUPT_TIME" or as the value 0x68.
Error Code 105
  • System error code 105 means "The previous ownership of this semaphore has ended." This error code may also display as "ERROR_SEM_OWNER_DIED" or as the value 0x69.
Error Code 106
  • System error code 106 means "Insert the diskette for drive %1." This error code may also display as "ERROR_SEM_USER_LIMIT" or as the value 0x6A.
Error Code 107
  • System error code 107 means "The program stopped because an alternate diskette was not inserted." This error code may also display as "ERROR_DISK_CHANGE" or as the value 0x6B.
Error Code 108
  • System error code 108 means "The disk is in use or locked by another process." This error code may also display as "ERROR_DRIVE_LOCKED" or as the value 0x6C.
Error Code 109
  • System error code 109 means "The pipe has been ended." This error code may also display as "ERROR_BROKEN_PIPE" or as the value 0x6D.
Error Code 110
  • System error code 110 means "The system cannot open the device or file specified." This error code may also display as "ERROR_OPEN_FAILED" or as the value 0x6E.
Error Code 111
  • System error code 111 means "The file name is too long." This error code may also display as "ERROR_BUFFER_OVERFLOW" or as the value 0x6F.
Error Code 112
  • System error code 112 means "There is not enough space on the disk." This error code may also display as "ERROR_DISK_FULL" or as the value 0x70.
Error Code 113
  • System error code 113 means "No more internal file identifiers available." This error code may also display as "ERROR_NO_MORE_SEARCH_HANDLES" or as the value 0x71.
Error Code 114
  • System error code 114 means "The target internal file identifier is incorrect." This error code may also display as "ERROR_INVALID_TARGET_HANDLE" or as the value 0x72.
Error Code 117
  • System error code 117 means "The IOCTL call made by the application program is not correct." This error code may also display as "ERROR_INVALID_CATEGORY" or as the value 0x75.
Error Code 118
  • System error code 118 means "The verify-on-write switch parameter value is not correct." This error code may also display as "ERROR_INVALID_VERIFY_SWITCH" or as the value 0x76.
Error Code 119
  • System error code 119 means "The system does not support the command requested." This error code may also display as "ERROR_BAD_DRIVER_LEVEL" or as the value 0x77.
Error Code 120
  • System error code 120 means "This function is not supported on this system." This error code may also display as "ERROR_CALL_NOT_IMPLEMENTED" or as the value 0x78.
Error Code 121
  • System error code 121 means "The semaphore timeout period has expired." This error code may also display as "ERROR_SEM_TIMEOUT" or as the value 0x79.
Error Code 122
  • System error code 122 means "The data area passed to a system call is too small." This error code may also display as "ERROR_INSUFFICIENT_BUFFER" or as the value 0x7A.
Error Code 123
  • System error code 123 means "The filename, directory name or volume label syntax is incorrect." This error code may also display as "ERROR_INVALID_NAME" or as the value 0x7B.
Error Code 124
  • System error code 124 means "The system call level is not correct." This error code may also display as "ERROR_INVALID_LEVEL" or as the value 0x7C.
Error Code 125
  • System error code 125 means "The disk has no volume label." This error code may also display as "ERROR_NO_VOLUME_LABEL" or as the value 0x7D.
Error Code 126
  • System error code 126 means "The specified module could not be found." This error code may also display as "ERROR_MOD_NOT_FOUND" or as the value 0x7E.
Error Code 127
  • System error code 127 means "The specified procedure could not be found." This error code may also display as "ERROR_PROC_NOT_FOUND" or as the value 0x7F.
Error Code 128
  • System error code 128 means "There are no child processes to wait for." This error code may also display as "ERROR_WAIT_NO_CHILDREN" or as the value 0x80.
Error Code 129
  • System error code 129 means "The %1 application cannot be run in Win32 mode." This error code may also display as "ERROR_CHILD_NOT_COMPLETE" or as the value 0x81.
Error Code 130
  • System error code 130 means "Attempt to use a file handle to an open disk partition for an operation other than raw disk I/O." This error code may also display as "ERROR_DIRECT_ACCESS_HANDLE" or as the value 0x82.
Error Code 131
  • System error code 131 means "An attempt was made to move the file pointer before the beginning of the file." This error code may also display as "ERROR_NEGATIVE_SEEK" or as the value 0x83.
Error Code 132
  • System error code 132 means "The file pointer cannot be set on the specified device or file." This error code may also display as "ERROR_SEEK_ON_DEVICE" or as the value 0x84
Error Code 133
  • System error code 133 means "A JOIN or SUBST command cannot be used for a drive that contains previously joined drives." This error code may also display as "ERROR_IS_JOIN_TARGET" or as the value 0x85.
Error Code 134
  • System error code 134 means "An attempt was made to use a JOIN or SUBST command on a drive that has already been joined." This error code may also display as "ERROR_IS_JOINED" or as the value 0x86.
Error Code 135
  • System error code 135 means "An attempt was made to use a JOIN or SUBST command on a drive that has already been substituted." This error code may also display as "ERROR_IS_SUBSTED" or as the value 0x87.
Error Code 136
  • System error code 136 means "The system tried to delete the JOIN of a drive that is not joined." This error code may also display as "ERROR_NOT_JOINED" or as the value 0x88.
Error Code 137
  • System error code 137 means "The system tried to delete the substitution of a drive that is not substituted." This error code may also display as "ERROR_NOT_SUBSTED" or as the value 0x89.
Error Code 138
  • System error code 138 means "The system tried to join a drive to a directory on a joined drive." This error code may also display as "ERROR_JOIN_TO_JOIN" or as the value 0x8A.
Error Code 139
  • System error code 139 means "The system tried to substitute a drive to a directory on a substituted drive." This error code may also display as "ERROR_SUBST_TO_SUBST" or as the value 0x8B.
Error Code 140
  • System error code 140 means "The system tried to join a drive to a directory on a substituted drive." This error code may also display as "ERROR_JOIN_TO_SUBST" or as the value 0x8C.
Error Code 141
  • System error code 141 means "The system tried to SUBST a drive to a directory on a joined drive." This error code may also display as "ERROR_SUBST_TO_JOIN" or as the value 0x8D.
Error Code 142
  • System error code 142 means "The system cannot perform a JOIN or SUBST at this time." This error code may also display as "ERROR_BUSY_DRIVE" or as the value 0x8E.
Error Code 143
  • System error code 143 means "The system cannot join or substitute a drive to or for a directory on the same drive." This error code may also display as "ERROR_SAME_DRIVE" or as the value 0x8F.
Error Code 144
  • System error code 144 means "The directory is not a subdirectory of the root directory." This error code may also display as "ERROR_DIR_NOT_ROOT" or as the value 0x90.
Error Code 145
  • System error code 145 means "The directory is not empty." This error code may also display as "ERROR_DIR_NOT_EMPTY" or as the value 0x91.
Error Code 146
  • System error code 146 means "The path specified is being used in a substitute." This error code may also display as "ERROR_IS_SUBST_PATH" or as the value 0x92.
Error Code 147
  • System error code 147 means "Not enough resources are available to process this command." This error code may also display as "ERROR_IS_JOIN_PATH" or as the value 0x93.
Error Code 148
  • System error code 148 means "The path specified cannot be used at this time." This error code may also display as "ERROR_PATH_BUSY" or as the value 0x94.
Error Code 149
  • System error code 149 means "An attempt was made to join or substitute a drive for which a directory on the drive is the target of a previous substitute." This error code may also display as "ERROR_IS_SUBST_TARGET" or as the value 0x95.
Error Code 150
  • System error code 150 means "System trace information was not specified in your CONFIG.SYS file or tracing is disallowed." This error code may also display as "ERROR_SYSTEM_TRACE" or as the value 0x96.
Error Code 151
  • System error code 151 means "The number of specified semaphore events for DosMuxSemWait is not correct." This error code may also display as "ERROR_INVALID_EVENT_COUNT" or as the value 0x97.
Error Code 152
  • System error code 152 means "DosMuxSemWait did not execute too many semaphores are already set." This error code may also display as "ERROR_TOO_MANY_MUXWAITERS" or as the value 0x98.
Error Code 153
  • System error code 153 means "The DosMuxSemWait list is not correct." This error code may also display as "ERROR_INVALID_LIST_FORMAT" or as the value 0x99.
Error Code 154
  • System error code 154 means "The volume label you entered exceeds the label character limit of the target file system." This error code may also display as "ERROR_LABEL_TOO_LONG" or as the value 0x9A.
Error Code 155
  • System error code 155 means "Cannot create another thread." This error code may also display as "ERROR_TOO_MANY_TCBS" or as the value 0x9B.
Error Code 156
  • System error code 156 means "The recipient process has refused the signal." This error code may also display as "ERROR_SIGNAL_REFUSED" or as the value 0x9C.
Error Code 157
  • System error code 157 means "The segment is already discarded and cannot be locked." This error code may also display as "ERROR_DISCARDED" or as the value 0x9D.
Error Code 158
  • System error code 158 means "The segment is already unlocked." This error code may also display as "ERROR_NOT_LOCKED" or as the value 0x9E.
Error Code 159
  • System error code 159 means "The address for the thread ID is not correct." This error code may also display as "ERROR_BAD_THREADID_ADDR" or as the value 0x9F.
Error Code 160
  • System error code 160 means "One or more arguments are not correct." This error code may also display as "ERROR_BAD_ARGUMENTS" or as the value 0xA0.
Error Code 161
  • System error code 161 means "The specified path is invalid." This error code may also display as "ERROR_BAD_PATHNAME" or as the value 0xA1.
Error Code 162
  • System error code 162 means "A signal is already pending." This error code may also display as "ERROR_SIGNAL_PENDING" or as the value 0xA2.
Error Code 164
  • System error code 164 means "No more threads can be created in the system." This error code may also display as "ERROR_MAX_THRDS_REACHED" or as the value 0xA4.
Error Code 167
  • System error code 167 means "Unable to lock a region of a file." This error code may also display as "ERROR_LOCK_FAILED" or as the value 0xA7.
Error Code 170
  • System error code 170 means "The requested resource is in use." This error code may also display as "ERROR_BUSY" or as the value 0xAA.
Error Code 173
  • System error code 173 means "A lock request was not outstanding for the supplied cancel region." This error code may also display as "ERROR_CANCEL_VIOLATION" or as the value 0xAD.
Error Code 174
  • System error code 174 means "The file system does not support atomic changes to the lock type." This error code may also display as "ERROR_ATOMIC_LOCKS_NOT_SUPPORTED" or as the value 0xAE.
Error Code 180
  • System error code 180 means "The system detected a segment number that was not correct." This error code may also display as "ERROR_INVALID_SEGMENT_NUMBER" or as the value 0xB4.
Error Code 182
  • System error code 182 means "The operating system cannot run %1." This error code may also display as "ERROR_INVALID_ORDINAL" or as the value 0xB6.
Error Code 183
  • System error code 183 means "Cannot create a file when that file already exists." This error code may also display as "ERROR_ALREADY_EXISTS" or as the value 0xB7.
Error Code 186
  • System error code 186 means "The flag passed is not correct." This error code may also display as "ERROR_INVALID_FLAG_NUMBER" or as the value 0xBA.
Error Code 187
  • System error code 187 means "The specified system semaphore name was not found." This error code may also display as "ERROR_SEM_NOT_FOUND" or as the value 0xBB.
Error Code 188
  • System error code 188 means "The operating system cannot run %1." This error code may also display as "ERROR_INVALID_STARTING_CODESEG" or as the value 0xBC.
Error Code 189
  • System error code 189 means "The operating system cannot run %1." This error code may also display as "ERROR_INVALID_STACKSEG" or as the value 0xBD.
Error Code 190
  • System error code 190 means "The operating system cannot run %1." This error code may also display as "ERROR_INVALID_MODULETYPE" or as the value 0xBE.
Error Code 191
  • System error code 191 means "Cannot run %1 in Win32 mode." This error code may also display as "ERROR_INVALID_EXE_SIGNATURE" or as the value 0xBF.
Error Code 192
  • System error code 192 means "The operating system cannot run %1." This error code may also display as "ERROR_EXE_MARKED_INVALID" or as the value 0xC0.
Error Code 193
  • System error code 193 means "%1 is not a valid Win32 application." This error code may also display as "ERROR_BAD_EXE_FORMAT" or as the value 0xC1.
Error Code 194
  • System error code 194 means "The operating system cannot run %1." This error code may also display as "ERROR_ITERATED_DATA_EXCEEDS_64k" or as the value 0xC2.
Error Code 195
  • System error code 195 means "The operating system cannot run %1." This error code may also display as "ERROR_INVALID_MINALLOCSIZE" or as the value 0xC3.
Error Code 196
  • System error code 196 means "The operating system cannot run this application program." This error code
Error Code 197
  • System error code 197 means "The operating system is not presently configured to run this application." This error code may also display as "ERROR_IOPL_NOT_ENABLED" or as the value 0xC5.
Error Code 198
  • System error code 198 means "The operating system cannot run %1." This error code may also display as "ERROR_INVALID_SEGDPL" or as the value 0xC6.
Error Code 199
  • System error code 199 means "The operating system cannot run this application program." This error code may also display as "ERROR_AUTODATASEG_EXCEEDS_64k" or as the value 0xC7.

Monday, December 27, 2010

How to solve error 800B0001 or 81000306 on Windows

Solution if error appears in Windows Live Messenger:

  • Open a run window by clicking start, then run. Now, type the following command and press enter: regsvr32 softpub.dll Wintrust.dll Initpki.dll Rsaenh.dll Mssip32.dll Cryptdlg.dll
  • With Windows XP you should open another run window after running the previous commands then type the following command: regsvr32 Dssenh.dll Gpkcsp.dll Slbcsp.dll Sccbase.dll


Solution if error appears during Windows XP installation:
  • You may receive this error message during the device detection phase of a Win2000 installation. It occurs if the computer you’re using has an old or outdated BIOS.
  • To solve the problem, you’ll have to upgrade your motherboard to the latest version of BIOS and run Setup again.

Thursday, December 2, 2010

Error code E74 or E-74 on Xbox 360

Resized to 75% (was 800 x 600) - Click image to enlarge



Resized to 75% (was 800 x 600) - Click image to enlarge

The green light on the xbox is red and the screen says error code E7.:

Solution 1:

This error is caused by the HANA (scaler) chip loosening from the Motherboard.


Posted Image


That black chip is the HANA chip. That is the cause of all the problems. Take 10 pennies, and super glue them into a stack:


Posted Image


Place the stack on the chip and then put the fan cover back on.
More information here: http://www.se7ensins.com/forums/topic/67479-how-to-fix-error-e74/

Solution 2:

Monday, December 14, 2009

error code 0x80040905 with Google Earth installation

Solution 1:
  • Download and install this Windows installer Cleanup Utility: http://support.microsoft.com/kb/290301
  • After installation, Click "START" and run the utility. It will list all kinds of installations in your. Check "Google Earth" and select Remove.
  • Rerun the original Google Updater .exe

Solution 2:
  • Install Google Earth with this link:
http://dl.google.com/earth/client/GE5/release_5_0/GoogleEarth-Win-Plus-5.0.11337.1968.exe

Solution 3:
  1. Download 7-zip at: www.7-zip.org/
  2. Download http://dl.google.com/earth/client/GE5/release_5_1_0/googleearth-Win-5.1.3533.1731.exe
  3. Right click the googleearth-Win-5.1.3533.1731.exe and scroll to 7-zip then choose open archive.
  4. When your in the 7-zip, open Program Files -> Google, then COPY the Google folder and paste it in C:\Program Files. Overwrite if any warning would appear. Do not copy anything else in googleearth-Win-5.1.3533.1731.exe archive, except the google folder.
  5. Go to the directory where the GOOGLE folder in drive C is located and open .exe.
Solution 4:
  1. Click "Start" > "Settings > "Control Panel."
  2. Double-click "Add or Remove Programs."
  3. Scroll down to find "Google Earth" and click it.
  4. Click Remove, then Yes, then Finish. Please note, this may result in an error, which can be ignored.
  5. Download and run the Windows Installer CleanUp Utility at http://support.microsoft.com/kb/290301
  6. Uninstall your version of Google Earth by selecting it from the list and clicking "Remove". Please see below for a list of possible entries.
  7. Upgrade to the latest version from our download link at http://earth.google.com/download-earth.html

Monday, December 7, 2009

HTTP errors codes

100 Continue: the server has received the request headers, and the client should proceed to send the request body. If the request body is large, sending it to a server when a request has already been rejected based upon inappropriate headers is inefficient.
101 Switching Protocols: the requester has asked the server to switch protocols and the server is acknowledging that it will do so.
102 Processing (RFC 2518): As a WebDAV request may contain many sub-requests involving file operations, it may take a long time to complete the request. This code indicates that the server has received and is processing the request, but no response is available yet. This prevents the client from timing out and assuming the request was lost.

200 OK: Standard response for successful HTTP requests. The actual response will depend on the request method used. In a GET request, the response will contain an entity corresponding to the requested resource. In a POST request the response will contain an entity describing or containing the result of the action.
201 Created: The request has been fulfilled and resulted in a new resource being created.
202 Accepted: The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place.
203 Non-Authoritative Information (since HTTP/1.1): The server successfully processed the request, but is returning information that may be from another source.
204 No Content: The server successfully processed the request, but is not returning any content.
205 Reset Content: The server successfully processed the request, but is not returning any content. Unlike a 204 response, this response requires that the requester reset the document view.
206 Partial Content: The server is delivering only part of the resource due to a range header sent by the client. This is used by tools like wget to enable resuming of interrupted downloads, or split a download into multiple simultaneous streams.
207 Multi-Status (WebDAV) (RFC 2518): The message body that follows is an XML message and can contain a number of separate response codes, depending on how many sub-requests were made.

300 Multiple Choices: multiple options for the resource that the client may follow. It, for instance, could be used to present different format options for video, list files with different extensions, or word sense disambiguation.
301 Moved Permanently: This and all future requests should be directed to the given URI.
302 Found: redirect code[citation needed]. HTTP/1.0 specification (RFC 1945) required the client to perform a temporary redirect (the original describing phrase was "Moved Temporarily"), but popular browsers implemented it as a 303 See Other. Therefore, HTTP/1.1 added status codes 303 and 307 to distinguish between the two behaviours. However, the majority of Web applications and frameworks still use the 302 status code as if it were the 303.
303 See Other (since HTTP/1.1): The response to the request can be found under another URI using a GET method. When received in response to a PUT, it should be assumed that the server has received the data and the redirect should be issued with a separate GET message.
304 Not Modified: Indicates the resource has not been modified since last requested. The HTTP client provides a header like the If-Modified-Since header to provide a time against which to compare. Utilizing this saves bandwidth and reprocessing on both the server and client, as only the header data must be sent and received in comparison to the entirety of the page being re-processed by the server, then resent using more bandwidth of the server and client.
305 Use Proxy (since HTTP/1.1): Many HTTP clients (such as Mozilla and Internet Explorer) do not correctly handle responses with this status code, primarily for security reasons.
307 Temporary Redirect (since HTTP/1.1): the request should be repeated with another URI, but future requests can still use the original URI. In contrast to 303, the request method should not be changed when reissuing the original request. For instance, a POST request must be repeated using another POST request.

400 Bad Request: The request contains bad syntax or cannot be fulfilled.
401 Unauthorized: Similar to 403 Forbidden, but specifically for use when authentication is possible but has failed or not yet been provided. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource. See Basic access authentication and Digest access authentication.
402 Payment Required: The original intention was that this code might be used as part of some form of digital cash or micropayment scheme, but that has not happened, and this code has never been used.
403 Forbidden: The request was a legal request, but the server is refusing to respond to it. Unlike a 401 Unauthorized response, authenticating will make no difference.
404 Not Found: The requested resource could not be found but may be available again in the future. Subsequent requests by the client are permissible.
405 Method Not Allowed: A request was made of a resource using a request method not supported by that resource.
406 Not Acceptable: The requested resource is only capable of generating content not acceptable according to the Accept headers sent in the request.
407 Proxy Authentication Required.
408 Request Timeout: The server timed out waiting for the request. According to W3 HTTP specifications: "The client did not produce a request within the time that the server was prepared to wait. The client MAY repeat the request without modifications at any later time."
409 Conflict: Indicates that the request could not be processed because of conflict in the request, such as an edit conflict.
410 Gone: Indicates that the resource requested is no longer available and will not be available again. This should be used when a resource has been intentionally removed; however, it is not necessary to return this code and a 404 Not Found can be issued instead. Upon receiving a 410 status code, the client should not request the resource again in the future. Clients such as search engines should remove the resource from their indexes.
411 Length Required: The request did not specify the length of its content, which is required by the requested resource.
412 Precondition Failed: The server does not meet one of the preconditions that the requester put on the request.
413 Request Entity Too Large: The request is larger than the server is willing or able to process.
414 Request-URI Too Long: The URI provided was too long for the server to process.
415 Unsupported Media Type: The request did not specify any media types that the server or resource supports.
416 Requested Range Not Satisfiable: The client has asked for a portion of the file, but the server cannot supply that portion.
417 Expectation Failed: The server cannot meet the requirements of the Expect request-header field.
418 I'm a teapot: The HTCPCP server is a teapot. The responding entity MAY be short and stout. This code was defined as one of the traditional IETF April Fools' jokes, in RFC 2324, Hyper Text Coffee Pot Control Protocol, and is not expected to be implemented by actual HTTP servers.
422 Unprocessable Entity (WebDAV) (RFC 4918): The request was well-formed but was unable to be followed due to semantic errors.
423 Locked (WebDAV) (RFC 4918): The resource that is being accessed is locked
424 Failed Dependency (WebDAV) (RFC 4918): The request failed due to failure of a previous request (e.g. a PROPPATCH).
425 Unordered Collection (RFC 3648): Defined in drafts of "WebDAV Advanced Collections Protocol", but not present in "Web Distributed Authoring and Versioning (WebDAV) Ordered Collections Protocol".
426 Upgrade Required (RFC 2817): The client should switch to a different protocol such as TLS/1.0.
449 Retry With: A Microsoft extension. The request should be retried after doing the appropriate action.
450 Blocked by Windows Parental Controls: A Microsoft extension. This error is given when Windows Parental Controls are turned on and are blocking access to the given webpage.

500 Internal Server Error: A generic error message, given when no more specific message is suitable.
501 Not Implemented: The server either does not recognise the request method, or it lacks the ability to fulfil the request.
502 Bad Gateway: The server was acting as a gateway or proxy and received an invalid response from the downstream server.
503 Service Unavailable: The server is currently unavailable (because it is overloaded or down for maintenance). Generally, this is a temporary state.
504 Gateway Timeout: The server was acting as a gateway or proxy and did not receive a timely request from the downstream server.
505 HTTP Version Not Supported: The server does not support the HTTP protocol version used in the request.
506 Variant Also Negotiates (RFC 2295): Transparent content negotiation for the request, results in a circular reference.
507 Insufficient Storage (WebDAV) (RFC 4918).
509 Bandwidth Limit Exceeded (Apache bw/limited extension): This status code, while used by many servers, is not specified in any RFCs.
510 Not Extended (RFC 2774): Further extensions to the request are required for the server to fulfil it.

Tuesday, November 24, 2009

Error code 8e5e0713 with Windows Live Messenger

Solution 1:
  • Check firewall settings.
    • With Windows Firewall:
      • Windows XP: Click Start, Control Panel, Windows Firewall.
      • Windows Vista or Windows 7: Click Start, Control Panel, Security, Windows Firewall, Change settings.
    • Switch to the Exceptions tab and check if there is a checked entry Windows Live Messenger. If there isn’t any, check the checkbox, adding Messenger as exception.
    • Click OK, and try to sign in to Messenger.
  • If it still doesn’t work, re-install Messenger.
    • Uninstall Messenger. With Windows XP:
      • Click Start, Control Panel, Add and Remove Programs.
      • A list of installed applications appears.
      • Click Windows Live Essentials, and choose Change/Uninstall.
      • A wizard for uninstalling Messenger opens.
    • With Windows Vista or Windows 7:
      • Click Start, Control Panel, Programs, Uninstall program.
      • A list of installed applications appears.
      • Click Windows Live Essentials, and choose Change/Uninstall.
      • A wizard for uninstalling Messenger opens.
    • Re-install Messenger (http://download.live.com/messenger)
    • After the setup, reboot your computer.
Solution 2:
  • Download a registry cleaner and install it.
  • Open the registry cleaner and scan you computer for free.
  • Click fix button and you done.