soonertiger2012 said:
I had a question about the Disk Cleanup in Windows 7 Home Premium:

The disk cleanup box says, "You can safely delete temporary files that have not been modified in over a week."

When I run disk cleanup, does it only delete files older than one week or all of them? I want to make sure that disk cleanup won't delete something that it should not delete.

Just upgraded from Vista to 7 and love Windows 7 already!
For the benefit of anyone else reading this thread - Disk cleanup doesn't clean files that are newer than 7 days old by default although this can be changed by more experienced users who have a system image backup in place.

See the related posts here:

Windows Temporary Directory automatic cleanup

and here:

Windows Temporary Directory automatic cleanup