mixture, did all you suggest after the last 'incident.'
I use CCleaner a lot too and find it very reliable.
The C hdd is a large one, and relatively new, and I have chkdisk'd it. Couple of files missing but they were restored.
Anyway I will do a full system back up with Acronis and make sure that is OK.
It is strange that this is the second time in a couple of weeks.
By the by, Milo. On that Sunday I had no emails and OE was very slow and I could not speed test broadband, and my assessment was as the 'internet down' in my area was the fault. This was similar and I am inclined to think its the ISP. I will ask questions!! The 'down time' was in the order of 5-8 hours.
Thanks for the help.