PC Bluescreens randomly when on windows 7

I recently got my pc back up and running after replacing a bad hard drive and now whenever I try to install windows 7 (tried both home premium and ultimate) my pc would randomly bluescreen. The errors always had to do with kernel files and almost always prevented my pc from booting soon after. I then tried ubuntu 12.04 and so far everything works fine with the exception of a one or two crashes and not being able to play any games. I sadly do not think I have any of the .dmp files left but the most frequent kernel error was with "ntoskrnl.exe" which in a previous thread I was told that this is because a third-party driver was in ntoskrnl's memory space. When I tried win7 ult I was completely disconected from the internet because my wireless adapter was unable to manually read my drivers and I had nothing else extra installed.

I really dislike ubuntu because you have to enter codes in all the time and spend way more time trouble shooting, and because I can only play a few of my games and even those run poorly at the absolute lowest settings as opposed to almost max when on 7.

but I cant do any of that because I currently am not on windows so I also can't provide any dump files. All the issues were caused by kernel and this happend from 2 different installations.

I just set my pc to dual boot ubuntu and windows, if anything happens Ill be sure to post the dumps