by icycalm » 03 Aug 2018 22:30
Go to the Temp directory in Windows, select everything with Ctrl + A, and delete it. A few files will give you trouble, so press "skip" for those when they ask you to confirm deletion, but they are a minority. The rest can be safely deleted. I saved about 3.5GB this way in a 500GB hard drive that's been in use for about a year and a half.