Still having probs with this, I downloaded the malware removal tool that you suggested Jimmy, and I had to subcribe for it to clear the jyku-fjo. This worked a treat, but it still shuts down after the error message.
I did some googleing, and I can stop the shutdown by going Start-Run-and typeing shutdown -a. From what I read on line, a lot of forums say that it's a blaster worm, so I downloaded the scan/fix for this and it did not find anything, or the sasser worm. I have ran the PC Dr and AVG in safe mode and gone through the processes in task manager but still can not find anything.
Now I do know that there is a problem because when I go on-line after a while a new window opens and direct to another site at random, the PC then freezes and I have to end task. This takes for ever and the PC runs like an amstrad until I give up and re-boot.
Getting p!$$&d with it now, any ideas.