This computer belongs to a friend of my sister-in-law and is probably the most infected computer I have ever come across. In view of the seriousness of the infections - included 2 ZeroAccess rootkits - I have come to the conclusion that the only safe solution is a complete re-install.
The computer has a recovery partition and I think I have downloaded the relevant manual, but it is silent on the subject of how you initiate a recovery. Anybody got any ideas ?
It also set a personal record for temporary files - 100K + !