My question is, how do you delete everything while the game is running?

You have solved another thing for me,bty. Your advice using %%.
Obviously, I'm not a naturally talented computer guy, just one who has to use them at work.
My ongoing hatred/frustration with Windows is eternal, and lately I have lamented that Windows 10 doesn't work like Windows 7. I ramble around the Control Panel, griping that I can't find anything.
Now I know where they went.
Thanks for that!!!!!