thanks for all the response guys.
here's what I did:
I took rad from devs/dosdrivers, drawer is without rad now, I dont have storage drawer anywhere(?), so I popped wb storage 3.0 disk in, and copied all the files, so I have storage folder(copied from floppy) I deleted rad file(permanently, or just a icon?), clearly something is wrong(still the same amount of free memory available) + when I'm trying to enable rad file from storage (dos drivers)(trying to see if the file is still there), - it says, that rad is already mounted, so probably I didn't remove it at all, and there is still rad in the boot menu.
awaiting response ^_~