I use Macrium Reflect to clone (no, not image) my disc. Because very little changes, I just delete the old C clone, called
(E)CLONESYSPROG
(F)CLONEDATA drive isn't a problem.

It keeps asking me for permission to delete system files, but permission isn't enough. I'm stuck at thousands of files that refuse to delete. I didn't have this problem before. It's not the first time I've cloned my drives.