Multiple Windows directories, which one is active?

binarysoul

I'm working on a PC with four logical drives and they all have Windows directories.

I know Windows won't allow me to delete active OS, but how do I know which drive contains the active OS? One way I used was to look at a few services and they all point to drive C, an indication drive C: holds the active OS.

Any other way to confirm active OS?

tiersten

Run System Information (msinfo32) and it will tell you what the windows directory is, what the system directory is and what the boot device is.