OS is Win ME. It's been getting very slow (boot up particularly, but recently performing any task is irritatingly slow) so I decided to do a disk cleanup (temp internet files) and I've deleted old Word docs that I no longer needed. Have 38Mb of photos, but nothing else of any large size. System resources 58% free. Began Defrag but in half hour it's never got beyond 2%, then it goes back to 0%. I looked at other threads on the subject that suggest regular defragging is a good idea; well mine hasn't been done in yonks (seem the rememebr that last time i tried had similar experience so gave up). Should I just leave it running and come back several hours later? or do people have other advice?