OKay this is not exactly a morroblivion problem but it is related and I couldn't find a better place for it.
So I have morroblivion installed on pc and played it for a while and then decided to go play morrowind. But somehow it crashes after a lengthy period of time which is still annoying. I have no mods installed nothing. It is steam goty edition that I run on win 7 in compatibility with xp sp2 and admin rights, nvidia latest drivers. Soo yeah have no idea what's causing it. And if i recall correctly it used to run just fine before morroblivion. But that is a bit odd because all morroblivion does just reads information off morrowind during installation. I would like to keep both games installed and I wouldnt want to remove morroblivion just to test if it works better without it, besides it does look doubtful.

It's not possible for
It's not possible for Morroblicion to cause problems with Morrowind. Whatever is causing your crashes, it's related to Morrowind itself.