Need a Patch???

Possible Duplicate:
Should I Install this “important” Unity-Recommended Windows Patch?

I import my models into unity as .obj and some of the polygons are messed up. So, I deleted them and I tried to put the models in unity again with the same results. Then I looked down on the bar on the bottom that said "Your 64 bit Windows installation is missing an improtant service pack patch. Please apply http://support.microsoft.com/kb/976038 to ensure stability". I went on that site and I have no cule what's on the site. Has anybody ran into this issue? And, if you have and you have unity working, how did you apply it and did that affect my models polygons messing up?