Hello Wokka21 and welcome to Seven Forums.
Have you reviewed the steps in the other thread that were suggested? Windows 7 freezes turn into inability to boot into anything
As mentioned there can you post your system specs?
This could be a hardware issue, with out your system specs it will be difficult for us to recommend the correct tests. System Info - See Your System Specs
Or you can use: Speccy Free System information Utility
Follow this procedure and post the requested information, even if there are no dump files, the info generated can help us to find the cause. Blue Screen of Death (BSOD) Posting Instructions
Start with a HDD test, best to get the app from your HDD manufacturer.
Then memtest86+, run first with all your RAM cards installed, run for a full 7 passes, best to run overnight as it may take a while. RAM - Test with Memtest86+