Hello, I scan many infected drives each day by hooking them up to a clean system. Running nod32 v4 with updated defs. While the drive scans it finds a olimarik variant has taken over one of the sys files in system32/drivers (winxp sp3 on the infected drive). Nod cant delete it but keeps trying, popping up saying "error deleting..." Nod32 has no idea what permissions are. Whenever this happens i have to go into the registry, turn on the security tab for files in normal mode, and then find the infected sys file and set owner to administrator and take full control. Once i've done that..nod deletes the file. So my question is...why in the world cant nod take permission of files? The other bad thing about this whole thing is...if i dont replace the system file that nod deleted after i manually granted it permission to be able to, I will be looking at a blue screen when i put the drive back into the system it came from. Could you maybe add a warning or something like "nod deleted critical system files that you need to manually replace"