On my Windows 10 box I have two users -- an administrative and a regular user. When I defrag first on the administrative user side, I am able to clean up nearly all fragments. If I immediately sign out and sign into the regular user and run defragger, I get a whole lot of fragmented files. (Doing so requires me to give the Defragger access using the User Account Control screen and input the admin password. So the defragger is obvious running in Admin mode with Admin permissions.)
What gives? Why is there a discrepancy? I thought perhaps that it has to do with administrative rights to the disk, but the administrative user has all rights to the disk, so that conclusion is wrong. I would appreciate your insights and suggestions on efficiently defragging the entire hard drive.
