I'm in need of help. Running Windows XP SP1, I've downloaded the latest version of HijackThis. I can only start my PC in safe mode, but as soon as I start the program to scan it, it restarts every time. Renaming the file does nothing.

If it's any help, I'm encountering problems regarding installing or updating antivirus or malware software. Running other utilities like Glary Utilities or SpywareBlaster crashes my PC almost immediately. In trying to install Avast (I have the .exe that accesses the files online in order to install), I get this log: 21.04.2009 14:50:00 general: Started: 21.04.2009, 14:50:00 21.04.2009 14:50:00 system: Operating system: WindowsXP ver 5.1, build 2600, sp 1.0 [Service Pack 1] 21.04.2009 14:50:00 system: Memory: 45% load. Phys:285268/523808K free, Page:940556/1280584K free, Virt:2071240/2097024K free 21.04.2009 14:50:00 system: Computer WinName: DAVILA 21.04.2009 14:50:00 system: Windows Net User: DAVILA\Justin 21.04.2009 14:50:01 general: Old version: ffffffff (-1) 21.04.2009 14:50:03 system: Using temp: C:\DOCUME~1\Justin\LOCALS~1\Temp\_av_inet.tm~a00604 (6237M free) 21.04.2009 14:50:11 internet: SYNCER: Type: use IE settings 21.04.2009 14:50:11 internet: SYNCER: Auth: another authentication, use WinInet 21.04.2009 14:50:11 general: Install check: Program folder does NOT exist in registry 21.04.2009 14:50:11 general: SGW32P::CheckIfInstalled set m_bAlreadyInstalled to 0 21.04.2009 14:50:19 general: progress thread start 21.04.2009 14:50:19 general: Destination: C:\DOCUME~1\Justin\LOCALS~1\Temp\_av_inet.tm~a00604 21.04.2009 14:50:19 general: Starting download: http://www.avast.com/go.php?verb=ge... 21.04.2009 14:50:38 internet: ERROR:HttpGetWininet, catch returned 0x00002EE7 21.04.2009 14:50:38 general: Download finished from server www.avast.com, result: 0x20000004, server response: 12007 21.04.2009 14:50:38 general: Stats www.avast.com, server response: 536870916 21.04.2009 14:50:55 general: POST result: 0x20000004, server response: 0