The User Profiles sheet (from System Properties) shows the three user profiles and the guest profile I have on my Windows XP Home computer. I am the main (and heavy) user and the size is 425MB. My wife is an infrequent user but her size is 1.65GB. What does this size mean? I have reduced her IE settings to 50MB and 7 days. System Restore is down to 5% and the Recycle Bin is at 10%.