I have been at my wits end to solve the problem but to no avail. I need to fix my laptop as soon as possible, need it for some official work, so please help fast!
I recently formatted my PC and installed a fresh copy of Win7 in C:
When I copied my stuff from my external hard drive ( I took a backup earlier), I suspect there was a virus/trojan etc in it.
My PC runs absolutely fine/smoothly until I open C:\users\abc\Downloads
My PC stops responding as soon as I open the folder. I used the command prompt in Windows installation DVD to delete everything in the Downloads folder. Then I ran scans using AVG, MalwareBytes and SuperAntiSpyware but found nothing.
My downloads folder is empty but during the scan, I noticed a folder.jpg file was being scanned in the Downloads folder. But I didn't see any such file there. So I went to registry and found a registry entry by the name folder.jpg with the C:\Users\abc\Downloads\folder.jpg as its location value.
I deleted the registry entry. I know it might be nothing but I thought it was worth a mention. I have ran the scans over but to no avail. My PC is running fine until I do anything. As soon as I open that folder, it stops responding and becomes super laggy.
I am assuming, its a rootkit which runs as soon as I open the folder but I am not sure since good softwares such as MalwareBytes are unable to detect any. ( Its a fully updated and registered version).
ComboFix doesn't work with Win7 and 64 bit, hence I couldnt use that.
Any cure to the problem ( except re-formatting ofcourse because I will eventually need to copy the data from my backup again, so I need a cure) and/or an explanation to the same would be greatly appreciated.
I have Win7 64 bit.
Thanks in advance!