Avg having trouble updating

Booting into safe mode doesnt work, or the other start options.

Or what to do when you don't like parties but do like party food? I went and removed Yesterday, our computer around 6PM got a fake antivirus virus that popped up and installed automatically. I then got this error on a blue screen when i booted and had it set to not auto-reboot: Quote: c000021a The Windows logon process system process terminated unexpectedly with a status o f 0xc0000022 (0x00000000, 0x0000000) The system has been shut down.I do not have a XP installation disc, or any other windows recovery discs.within the Windows XP Support forums, part of the Tech Support Forum category. When I turned it on, It would go past the XP screen and continuously reboot.Yesterday, our computer around 6PM got a fake antivirus virus that popped up and installed automatically. Later, about 2 hours later, I got another one that popped up on my task bar called "Antivirus 2010". Today i started up our computer, and I got Antivirus 2010 again. Then I could not access the internet via Google Chrome, so i tried AOL. I then hit F8 many times, and got the menu(not sure what its called) and make it so it would not auto-reboot on system failure.