My OS is Win 7 Pro 32 bit with SP1 and all updates installed.
I had set the defrag utility to run automatically every Wednesday, and it was doing so. I had not checked it for some time but on a whim decided to do so yesterday, but when I clicked on dfrgui nothing happened apart from a command window flashing on and off the screen. The same happened with Defrag.exe.
I have tried system restore and clicking on the same things in system images made with the paid version of Macrium Reflect, but it made no difference.
If anyone can tell me how to get the program back to normal I would be grateful.
Thanks and regards, Roy