There are lots of questions on this on line but no answers which actually work.
The problem is that I was trying to fine a way of saving config files in Microsoft FSX. Everytime I got a 'you're not permitted' response. Then an emergency cropped up and I left what I was doing. When I returned it seemed the PC had decided to do its own thing but I now believe it did a windows update.
The result was that whenever I want to do anything the UAC prompt appears asking me if I really want to. The trouble is the 'YES@ button has disappeared and no offered cure works because the UAC Prompt appears when I try - minus the 'Yes' button so the only option is 'NO'!.
I'm STUCK. Does anyone have a solution that really works - I can't even do a system restore.