I'm building a demo involving 2 SQL Servers and a shared backup directory.

In the process of building the following batch file (which removes a directory/share (if it already exists), then creates a directory/structure and shares it), I was running the commands by hand in the command prompt:

@Echo off
REM Delete share/directory if already in existance
net share Backup /DELETE
rd /S /Q C:\Backup
REM Create directory/share
md C:\Backup
md C:\Backup\Logs
net share Backup=C:\Backup
EcHO ---- Press any key to continue ----
pause >nul

Only, when I went to type rd /S /Q C:\Backup, I accidentally typed rd /S /Q C: and instead of hitting \ I hit ENTER. The good news: That's a bloody fast way delete every file on a drive (that isn't locked/in-use by a process). The bad news, that's a Bloody fast way to delete every file on your drive (that isn't currently in use).

Needless to say, I'm waaay glad that I was doing this on a VM (in VMWare 5).

Of course, you could think of this as the poor-man's dejunker: Just open the programs you want to keep (and any files you want to keep on your C: drive) and then delete everything ;)