When playing Fallout 3, after about 5 minutes the mouse/keyboard stops responding to input, but the game is still running. If I disable the audio output using bEnableAudio=0 the game runs fine, albeit without audio.

The game is a Steam copy, and all updates are installed. I have also tried changing bUseThreadedAI=0 to 1, and added iNumHWThreads=2 but no luck. Installed codecs are K-Lite Codec Pack Mega 10.2.0

My PC specs are:

  • Acer V3-772G with Windows 8.1 64bit,
  • NVidia GTX 760M,
  • Realtek ALC282 Audio onboard,
  • 16GB ram,
  • Intel i7 4702MQ CPU

Has anyone else experienced the same or similar issues?

  • Well, it's obvious you don't get any sound; bEnableAudio=0 means you've disabled audio, after all. There's nothing you can do to get the sound working again, unless you either remove that, or make it bEnableAudio=1 instead.
    – Nolonar
    Commented Jan 26, 2014 at 22:43
  • 1
    If I set bEnableAudio=1 after about 5 min mouse and keyboard stop responding. I'm searching for solution where i can have sound and game working for more than 5 min. Commented Jan 27, 2014 at 1:33

2 Answers 2


As always Microsoft in coalition with Bethesda make the best puzzles. My Windows 8.1 Pro N by default doesn't have Windows Media Player. After install of Windows Media Player the game is working perfectly.

Install instructions for Fallout 3 on Windows 8.1

  1. Install lates K-lite codecs
  2. Install Fallout 3 and lates updates
  3. Install Windows Live Client
  4. Install Windows Media Player
  5. Right click this file and open notepad: Documents\My Games\Fallout3\FALLOUT.INI
  6. Find (control+F) bUseThreadedAI=0
  7. Change to bUseThreadedAI=1
  8. Immediately after this line, ADD this new line: iNumHWThreads=2

Links: Windows Live Client, Windows Media Player

  • I would assume that whatever codecs the Windows Media Player runs under the covers are what fixed the issue. In any case nice job!
    – Robotnik
    Commented Jan 28, 2014 at 0:21

It appears you need to update your audio codecs, I found (this thread) which appears to describe the same problem.

The thread suggests that these codecs will fix the problem:

- K-Lite Mega Codec Pack 8.8.5

- K-Lite Codec Pack 6.3.5 (64bit)

You can get the latest version of the codecs here

Or older versions here

  • 1
    Links can and do change from time to time. Can you summarize the information located at that thread in case the link changes. Otherwise, great answer and welcome to Arqade.
    – David M
    Commented Jan 27, 2014 at 3:59
  • Thanks for the reply, but I forgot to mention that I'm using the latest K-Lite codecs, i will add version of my current codecs in question. As in the mentioned thread I have no sound in the main menu. I will try to change the settings of the codecs to see if I can make it work. Commented Jan 27, 2014 at 9:07
  • It is possible that your codecs are in fact too recent, I've had a problem before where I tried to run an older game and I had to downgrade one for it to function.
    – DBS
    Commented Jan 27, 2014 at 11:14
  • @DavidM Thanks for the tips, answer updated with the key info from the thread.
    – DBS
    Commented Jan 27, 2014 at 11:24
  • @DBS Well done! Please enjoy our site! We look forward to more quality answers like this one!
    – David M
    Commented Jan 27, 2014 at 13:10

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