Windows 11 Upgrades Blocked by Intel SST Audio Driver

Windows 11
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A new Windows 11 issue has come to light which sees users of Intel Smart Sound Technology presented with a blue screen - recently switched back from black to the traditional color - thanks to a driver incompatibility. Affected systems running Windows 10 will no longer be able to upgrade to Windows 11, according to a Microsoft ‘known issues and notifications’ article reported by Bleeping Computer.

The Windows BSOD

(Image credit: Future)

The driver at fault is IntcAudioBus.sys with a file version earlier than or In Device Manager it has the name “Intel® Smart Sound Technology (Intel® SST) Audio Controller”. The device in question is a digital signal processor that works alongside Core and Atom processors to handle voice commands and play back music without draining the battery. It’s not to be confused with the other Intel SST, or Speed Select Technology, which lets servers match their clock speed to their workload.

The 'fix' is to update the driver to a newer version. Just to make things more complicated, the 10.30.x versions are not newer than the 10.29.x versions, and upgrading may depend on your PC’s manufacturer offering the update. After the update is complete, the compatibility hold on upgrading should be lifted.

The news comes as a recent Insider build (22000.346) of 11 saw the formerly-black screen of death restored to the resplendent blue we all know and love. The build notes for the release blandly announce the change, but give no insight into why.

Ian Evenden
Freelance News Writer

Ian Evenden is a UK-based news writer for Tom’s Hardware US. He’ll write about anything, but stories about Raspberry Pi and DIY robots seem to find their way to him.

  • wrlsdata
    My Dell G3 3500 has this problem. BSOD does not occur when I disable Intel SST audio. Dell has not given me any updates to the driver. is available from Lenovo but I am hesitant to down load and execute on my Dell
  • wrlsdata
    There was no blocking when I upgraded to Windows 11. So, I am also wondering if after installing windows 11, whether upgrading the SST driver will cause more issues or solve the problem