You have to set up a scheduled scan to search System Restore files for infections. A manual scan can't do that because it scans as the current user and not System Account. If you use windows EFS encryption you have to scan as current user. So I basically need to do both a scheduled and a manual scan to cover both System Restore and the EFS files. That's very unnecessary as most other files, probably 90-95% of the total files are identical in both scans and can be scanned both by current user and System Account.
Also v.v. it would be a good thing if a scheduled scan also could scan EFS files as the user. Otherwise if you set up scheduled scans you still have to do manual scans to cover the EFS files.