I am trying to play Fallout 3 but it keeps freezing and I have to restart my computer. 
 
I am not running Xfire and I am using Steam so it is on the latest patch. Graphic drivers also up to date. 
 
Suggestions?  
 
Thanks.

ok i had this problem. do u happen to have a quad core? also upgrade to MS net framework 4.0

Lower graphical settings. 
 
What are your system specs? Have you tried reinstalling the game? your video card drivers?
 
Your GPU can just simply be overheating.

Sounds like Fallout 3. 
 
Whenever you are posting a technical problem with a PC game or software, you should always post your hardware configuration.   

@TotalEklypse said:

" ok i had this problem. do u happen to have a quad core? also upgrade to MS net framework 4.0 "

if you are running a quad core then there is a specific edit you do in fallout.ini file to stop it from using 2 of 4 cores. this will clear up the constant freeze problem 

You're fucked.

" if you are running a quad core then there is a specific edit you do in fallout.ini file to stop it from using 2 of 4 cores. this will clear up the constant freeze problem  "

what is the videocard? Is it me, or does anyone else thinks it's just the gpu overheating? Turn your overclocking fan to 100% through riva tuner or whatever you use.   
 
Reading the thread again, if it's a common problem. I don't know then, I don't play fallout 3 like ever.

Fallout 3 isn't exactly the most stable of games, no matter the platform.  Heck I could never finish the Point Lookout expansion on 360 because I left to unload some loot and the game would hard lock every time I tried to go back.  I also couldnt get back into arlington library cause it would crash my box.  I get this wierd HDR flicker issue on the PC version where the lighting system can never figure out how bright the horizon lighting should be.
 
Other fun issues include:
 
Caravan dissapearing apart from a single pack Brahmin.
2 Doc's and no Junk Dealer.
Being unable to leave your house in megaton because Dogmeat and Wadsworth block your bedroom door forever.

Are you using any mods?

" @NekuSakuraba:  I have a Q6600. The thing to do is to open up the fallout.ini and insert the line 'iNumHWThreads=4' under the general section, with the number for the cores you have.
Read more about it here: http://www.tweakguides.com/Fallout3_10.html "

Fallout 3 is an extremely buggy game.

Interestingly enough this did not affect the glowing reviews, where as game like Alpha Protocol get slammed by low scores for it.

"

Fallout 3 is an extremely buggy game.

Interestingly enough this did not affect the glowing reviews, where as game like Alpha Protocol get slammed by low scores for it.

"

AP is made by Obsidian published by Sega

Fallout 3 is developer and published by Bethesda

And it's sad that I did not even have to look that up.

" @NekuSakuraba: Click the link to read the guide. All you have to do is go to Documents > My Games > Fallout3 and there should be a document called Fallout.ini. Open with notepad and past in the line I said underneath the heading 'General'. 
@Tennmuerti:  There are probbably many reasons, but the main on I can think of is that Fallout 3 is open world. Open world games are pretty much expected to be buggy. I certainly put up with their bugs more than other games, because I know that it's going to happen. "

" @NekuSakuraba:  I posted that so long ago... but I think tyhe number of threads is equal to the number of cores in this case. So put the thread number for the cores you have. "

" @NekuSakuraba:  Huh? It's actually pretty simple.  iNumHWThreads=4 is the number of hardware threads (I think) as the name suggests. The number is the number of cores your processor has, so iNumHWThreads=4  would be 4 cores, yes? As for where, re-read the page. It tells you very explicitly. "

I have restarted fallout so many times, I can't even count. 
It's just second nature now, lol.

I have a temporary solution to this problem. Right when you get in to the game, save it. even if there was an autosave. and i find that the game will crash faster if there are too many autosaves while you are playing, so after a while, save it again. You will be able to play the game a lot longer than the 30 seconds you have been able to play so far, But after a while, It will freeze again. This worked for me and I'm not sure if it willl work for any of you, but that's what I've got.

I had this too, found the solution randomly on the net, make sure the FO3.exe has this checked, never had an issue since.