What are these Sha****.tmp files?

ProGamer643

Distinguished
Mar 14, 2011
173
0
18,710
I notice from windirstat that my computer seems to be creating quite a few of these Sha****.tmp files (**** being random letters and numbers) in the Appdata/Local/Temp folder. What are these files, and what keeps causing them to pop up? They are usually 1-2GB+ each. I'd just like to know what keeps creating them, because its taking up a lot of space on my SSD every time i turn on my computer.