Problem: You have an old discarded instances of failed Windows 7 installs. You can rename the directories, but they still clutter your hard drive, and they are very hard to get rid of. I simply can’t take this painful and slow process of deleting huge system directories under Windows 7. Remember this endless stream of errors, and warnings, and skips. The same task in Win XP only takes a few seconds. But under Windows 7, it is a project of its own. Pain! Finally, my patience ran out. I decided to write a script. And it it worked! Delete Windows System Directories Here is a fantastic way to delete huge Windows 7…