how do i get rid of Trojan horse Downloader.Qdown.C and also, i just found out i have mydoom.A as well, how do i get rid of that? i have avg free and nod 32 trial, but non could get rid of them...what do i have to do??? and the trojan horse downloader, the avg pops up every few min telling me that it is found and tell me to run avg to destroy it, but it keeps coming back primexx

Turn off system restore and restart your computer. During the restart enter the safe mode by tapping the F8 or F2 Key during the boot up sequence. When you get into the safe mode you can use your antivirus to scan and delete/clean the detected problem.

Alright thanks primexx

If you are running XP, you may need to clear your restore points.

how do you turn off system restore? And should I turn it back on after I get rid of the virus?

I am in the same boat I do not know how to delete the resore points?

Try this just found it:- To clear existing restore points Click Start, click All Programs, click Accessories, click System Tools, and then click System Restore. Click to add a check mark beside Turn off System Restore on all Drives, and click Apply. When you are warned that all existing Restore Points will be deleted, click Yes to continue. All system restore points are deleted. Now you should manually create a restore point. Click Start, click All Programs, click Accessories, click System Tools, and then click System Restore. Click Create a Restore Point, and then click Next. Name your restore point. ( I use the date as well as a descriptive term such as "After Restore Point Deletion.")