Virus disabled task manager, regedit, and automatically restarts PC

[sajidali]

The following in my PC are disabled:
- Task Manager
- RegEdit
- Folder Options
If try to access the above, the PC restarts
I am using AVG 8.0 with latest definitions
Attached please find the log created by Kaspersky
Sajid

[Rene-gad]

Switch off:
- Antivirus and and, if you have - Firewall.
- System Restore

- Execute following script

begin
SearchRootkit(true, true);
SetAVZGuardStatus(True);
 QuarantineFile('C:\WINDOWS\system32\system.exe','');
 QuarantineFile('C:\WINDOWS\system32\winupdate.exe','');
 DeleteFile('C:\WINDOWS\system32\winupdate.exe');
 DeleteFile('C:\WINDOWS\system32\system.exe');
BC_ImportAll;
ExecuteSysClean;
executerepair(1);
executerepair(5);
executerepair(6);
executerepair(8);
executerepair(9);
executerepair(11);
executerepair(16);
executerepair(17);
BC_Activate;
RebootWindows(true);
end.

After reboot:
- Clean Temp-Maps, Cache of Browsers, Recycler. Use Windows service tool cleanmgr or CCleaner or ClearProg
- Close all the programs and start only Internet Explorer!!!
- Repeat 3 log files in accordance with the rules.
- Switch Antivirus and, if you have - Firewall, on.
- Go On-Line
- Upload the quarantine over the link Upload quarantined files on the top of this page.
- Attach 3 logs to your new post..