Hello! I just discovered that I have the same problem with restore points disappearing when using CCleaner. I'm using version 2.17.853 with XP Home SP3 and don't know if this problem started with this version of CCleaner or one before. I haven't checked into system restore points in quite a while. However, I ran across this forum and decided to check (since I ran CCleaner this morning) and behold...I have only this morning's point. Curious problem! Has any progress been made to isolate the culprit? I'd rather not have all the restore points deleted.