well you can actually use virtualbox or easier versions of qemu to reinstall
windows if you are set on it that much.
To be quite honest I done that before, though some here probably want to
whack me on the head for saying this...
;)
heh but anyways my point is that it is possible...
IF you use virtualbox though, I would use a version of it that is before 4.2
as the openwatcom compiler is said to be unsafe for such a purpose.
Although only certain virtualbox versions work for this from what i know.