Windows 7 - Uhh, Disk Cleanup Question...

Every time I run the Disk Cleanup tool I always shows "Debug Dump Files" as being 620MB, even if I run Disk Cleanup twice in a row it always shows up. It didn't used to do that why would it now?

Maybe in the past there were no files, in that catagory to clean up. Try doing it a few more times and also include system files on your next try.

Try this:

In Control Panel, click on System > Advanced system settings > Advanced and under Startup and Recovery, click on Settings.

Then, in the Write debugging information drop down menu, select (none), then "OK" your way back out. Then try Clean up again. Note you may have to reboot to unlock the dmp file so it can be deleted. If that works, I would enable it again, in case it is needed in the future.

Also note that CCleaner - Slim Version is able to purge the system of .dmp files too. Before first use, go to Options > Settings > Advanced and ensure Only delete files in Windows Temp folders older than 24 hours is unchecked.