Windows 7: PLEASE HELP! Computer Stops Thinking and just stays frozen

I'm running:
Gigbyte P55M-UD2
Windows 7 Professional 64-bit
Intel Core i7 860@2.80Ghz
8GB RAM
NVIDIA GeForce GTS 250
1.5TB HDD

About once or twice a day my computer just stops thinking and freezes. i restart it and its fine afterwards but i really need to know whats causing it because it just does it randomly and i need to know how to stop it from doing it.

please help! antivirus aint picking up anything (PC Tools Internet Security)

I've attached the MSINFO32 file if that's any help.

There are several ways to find what the problem is. The best is to go into event viewer (type eventvwr in search). Go to the windows log>application tab.

You want to look for critical errors (they have red in the left column ).

When you find them you want to look for critical errors that say app hang, app crash, or anything that relates to the problem.

When you find them please note the event ID, and the source codes and tell us what they are.

ok i went to the event viewer but i got an error

"MMC could not create the snap-in"
The snap-in might not have been installed correctly.
name: Event Viewer
CLSID:
FX:{b05566ad-fe9c-4363-be05-7a4cbb7cb510}

Hello GhostintheZoid and welcome to Seven Forums.

I believe that particular error for Event Viewer FX:{b05566ad-fe9c-4363-be05-7a4cbb7cb510} means .NET Framework isn't installed. .NET Framework is included with Windows 7 so it's possible that something corrupted your system files. I'd try running System File Checker to see if you have any damaged or corrupt files. If it finds any problems run the scan 3-4 times.

SFC /SCANNOW Command - System File Checker

i ran sfc /scannow twice and both times it says

"Windows Resource Protection did not find any integrity violations."

See if .NET Framework is listed in Control Panel > Programs and Features. It might be listed as Microsoft .NET Framework 4. If it's not listed you can get the download here:

.NET Framework: Download

.NET Framework 4 requires that previous versions also be installed as each version builds upon the previous version. Earlier versions are at the bottom of the above Microsoft link. I'd suggest creating a Restore Point before installing each individual version "just in case".

System Restore Point - Create

System Restore

i had a look and it does have Microsoft .Net Framework 4 Client Profile installed its version 4.0.30319

should i uninstall it then re-install it or what?

Also just noticed when i tried to burn a cd, maybe this is the problem i dont know.
My Blu-ray drive doesn't work for this reason "Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)"

It would be much help if you could let me know what to do. because i have only done the sfc /scannow scan. and well lately it has been freezing a lot more rapidly like at least once every 4 hours.

please help its getting very annoying have to restart all the time.

please help still freezes constantly.