what is requester 12 located in c:\windows\system, can I delete it?

I would suggest to Quarentine it (AVG will automatically move it to a safer place in the system), so you can later decide whether or not / how to remove it.

After, quarantine, search on Google for how to remove the trojan. Search for the filename, name of the trojan along with the term "remove".

Perhaps, you can also post those details here on Answers - there are some very helpful people here that may be able to find answers more quickly.

Quarentine the file. If it is needed by the system, Windows can restore the file. Just write down which one and where it is. and Boot from Windows cd. After file is restored from Windows cd, delete quarentined file.

Also, Upgrade AVG to Bitdefender v10 with Rootkit Detection. You don't need to overpay for Internet Security versions.

see avg again big let down

use

Kaspersky internet security suite Anti-Virus 6.0

scan pc in safe mode

you have trojans & malware on ur pc get this then

scan pc in safemode use this to do it with & that spyware will go

ewido antispyware

spybot

xoftspy

antispyware blocker

ad-aware(se )

then you go to safemode on ur pc. restart pc. as pc is starting up. keep hitting on (F8) key you come to a menu . go to safemode . hit on enter then enter again. pc will go to login screen . go to ur user name hit on that

then run .da scan to find that spyware& malware

when found . delete da .spyware. then restart pc

um... I wouldn't delete anything in your system folder.

To put it shortly, it's the folder that makes your operating system work. ( I think )

Most likely, you're going to have to wipe your hard drive... and reload everything.