I never realized that feature was there.
Thanks for that information. I have never (knock on wood) had to use system restore in any serious way. Comments I have heard over the years is that it is often unreliable. I do use Windows Backup as a precaution and will try to use Previous Versions should the need arise. However, just to be safe I occasionally send a straight copy of all document and data folders to a portable hard drive to be stored off site. If the info is important I don't want to depend solely on system restore.