I am getting frequent errors with NTVDM.exe and these c:\n.exe and c:\r.exe files, very annyoing crashes in windows. They are related to running DOS files from what I have seen on the net.

I was trying to find what is causing it, and though maybe it was the mounted drive from DOSBOX that I can get rid of...
So I am trying to removing my f:\ mounted drive so that I can delete this old game's .ISO file I have..... but I can't get the dame drive dismounted.

The -u command appears to not work I guess, it tells me I can't dismount that drive for whatever reason. Deleting DOSBOX doesn't appear to work either, which I find funny and downright frustrating. My computer automatically mounts the ISO image as f: every time I boot up, irregardless of me using DOSBOX. It's like DOSBOX secretly runs in the background even when it is deleted.

Anyone have any suggestions?