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    Disabled device reactivated every time XP boots? Any way to fix it?

    Discussion in 'Windows OS and Software' started by nemt, Jun 22, 2011.

  1. nemt

    nemt Notebook Deity

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    In my previous topic about wasted system resources I talked about the Microsoft UAA Bus Driver for High Definition Audio being the culprit and the problem being solved by disabling it in Device Manager. The problem is now it's reenabled every time the PC powers on - it just won't stay disabled.

    This isn't normal Windows XP behavior afaik. Is there any way I can force it to stay disabled after shutdown/reboot?

    I know I could change its Start value to 4 in HKEY\LM\SYSTEM\CurrentControlSet\Services\ but then it would just be flagged as non-working, it would still technically be enabled. Not the most elegant solution.

    Any other ideas?
     
    nemt, Jun 22, 2011
    #1
  2. Primes

    Primes Notebook Deity

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    I'm thinking you might try disabling the plug-and-play service so that xp is not reinstalling the driver on boot. Of course doing this means you might have to turn it back on if your installing any new hardware.

    Completely disable Universal Plug and Play (UPnP)
     
    Primes, Jun 26, 2011
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  3. nemt

    nemt Notebook Deity

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    Thanks for the tip - bizarrely that just made things worse though. When I disabled the two services related to UPnP the Microsoft UAA driver indeed stayed disabled upon reboot - but the 50% CPU usage returned, even with this driver disabled.

    I guess I'm back to manually disabling it every boot for now.
     
    nemt, Jun 29, 2011
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  4. msnuser111

    msnuser111 Newbie

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    UPnP is actually not anything to do with driver detection,I'm surprised that it made any difference,it was probably a coincidence. UPnP is for networking,it allows applications to setup port forwards without you having to login to the router interface to set them up manually. The registry edit that you mentioned works just fine to keep the cpu usage down though,why don't you want to use that? (I have a computer that does exactly the same thing. its an hp dx5150,normal boot times are about 35 seconds,I added an ATI Radeon HD 4350 and it started taking about 8 minutes to boot and gets locked at 100% cpu usage due to hardware interrupts. Disabling the hdmi audio fixes it as well as the registry edit,mine auto reenables in both windows xp and windows 7 before doing that edit by the way.)
     
    msnuser111, Jul 3, 2011
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  5. nemt

    nemt Notebook Deity

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    I don't like that the device will still be activated, even if no resources are being devoted to it.
     
    nemt, Jul 14, 2011
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