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 It occurs if the computer you’re using has an old or outdated BIOS.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.