Microsoft finally removes Windows 11 24H2 upgrade block for many Intel PCs

Back in 2024, after two and a half years, Microsoft had finally lifted a Windows upgrade block which had prevented users on Windows 10 from upgrading to Windows 11. The problem, where systems would BSOD as a result, affected only Intel PCs as it was related to an incompatibility with Intel SST (Smart Sound Technology) drivers (not to be confused with Intel's Speed Select technology which is also abbreviated as SST).

For those who may be wondering, Intel SST is an integrated audio digital signal processor (DSP) or controller that is basically responsible for handling and processing audio signals on many modern Intel devices.

Interestingly, the issue haunted Windows 11 24H2 as well and as such Microsoft had placed a compatibility block on devices with 11th Gen Intel Core processors. Henceforth, such systems were not able to upgrade to the 24H2 feature update as Windows Update stopped offering it.

Microsoft noted that IT admins and sysadmins could identify and keep track of the safeguard hold using the ID 51876952.

After a year Microsoft has finally removed this block as the compatibility issue has now been resolved. This is the third block to have been lifted this month following the ones for a Dirac audio issue and another for a buggy Camera app.

To address the Intel SST bug, it is required to update the SST Audio Controller driver to a newer release, namely version 10.29.00.5714 or later, and 10.30.00.5714 or later. For most devices, the tech giant notes that the updated drivers should be available through the Windows Update channel. So users who are likely affected are advised to check for updates manually to ensure the latest drivers are installed.

Once a compatible driver is installed, Microsoft, like usual, notes that the safeguard will lift automatically, though it may take up to 48 hours before Windows 11 24H2 becomes available for installation.

You can find the issue on this page here on Microsoft's official Windows Release Health website.

If the safeguard remains in place 48 hours after updating, it may indicate that no compatible driver has been released for that device’s hardware configuration. In such cases, Microsoft recommends contacting the respective OEM for further support and guidance.

The company has also added that it is continuing to work with Intel and OEMs to ensure updated drivers are distributed through Windows Update as and when they are released, so you could also wait it out.

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Posted Tuesday 30 September 2025 at 4:00 am AEST (my time).

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