Thanks for that. I have a new PC with 2TB and 16GB memory. The plan is to move to that. I have a Netgear drive attached and quite a few USB drives. So I have space elsewhere. I see that many of the files are related to Apple ipad and iphone apps. But what was interesting is somehow, SmartSync which I use for backup, had a complete copy of My Documents in its Program folder. 43GB! I deleted it and am now defragging, although it will take some time ...