Hi all, I've been here before and received great help from Broni. Now I'm back again with another virus attack. Hope someone can help. Behaviour was as follows: A bunch of "System message - Write Fault Error" messages opened up on the desktop, followed by a "SYSTEM ERROR. HARD DISK FAILURE DETECTED. Windows has lost access to the system partition ...etc". It offers two options, "Scan and repair", or "Scan later". I suspected an attack, so I did neither. Desktop had gone black, with all icons vanished, except Internet Explorer. Access to start menu is allowed, surprisingly. All user files, including documents are vanished. I ran Malwarebytes, which detected two instances of "PUM.Hijack.StartMenu". On restart however, the same behaviour persisted. Ran Malwarebytes again which of course found the same two viruses in the same places. Restarted and ran Avira scan, which didn't even find the two viruses! Gave up trying by myself, and came to techspot to follow the tried-and-tested 5-step plan. Logs to follow. Grateful for any and all assistance.