it says "there’s no changes to restore", I check all this:

[ ] HKEY_CLASSES_ROOT
[ ] HKEY_CURRENT_USER
[ ] HKEY_LOCAL_MACHINE
[ ] HKEY_USERS
[ ] Start Menu Section
[ ] Obsolete Software
[ ] File Extensions
[ ] Add/Remove Programs
[ ] Shared DLLs
[ ] Fonts Section
[ ] Help File Paths
[ ] Uninstaller Entry
[ ] MRU History Lists
[ ] Empty Registry Keys

There’s something for "not to erase"?

I replace all but stel can’t restore system!

Is there a way to reactivate all the restore points (or marks)?

Thank you very much!!! See you!!!

how do i find ANY obsolete software in my pc, running windows XP