KB5029332

All users

Microsoft has received reports of an issue in which users are receiving an “UNSUPPORTED_PROCESSOR” error message on a blue screen after installing updates released on August 22, 2023 and then restarting their device. This update might automatically uninstall to allow Windows to start up as expected.

If you are experiencing issues, please use Feedback Hub to file a report following the below steps:

1. Open Feedback Hub by opening the Start menu and typing "Feedback hub", or pressing the Windows key + F

2. Fill in the "Summarize your feedback" and "Explain in more detail" boxes, then click Next.

3. Under the "Choose a category" section, click the "Problem" button, and select "Install and Update" category. Then select "Downloading, installing, and configuring Windows Update” subcategory. Click Next.

4. Under the "Find similar feedback" section, select the "Make new bug" radio button and click Next.

5. Under the "Add more details" section, supply any relevant detail (Note this is not critical to addressing your issue).

6. Expand the "Recreate my problem" box and press "Start recording". Reproduce the issue on your device.

7. Press "Stop recording" once finished. Click the "Submit" button.

For additional information, see Send feedback to Microsoft with the Feedback Hub app.

After investigating these reports, we have found that the “UNSUPPORTED_PROCESSOR” error was not caused by issues in this update and is limited to a specific subset of processors. For more information, see 13th Gen Intel® Core™ Processor Families with Performance Hybrid Architecture Blue Screen Hang Issue with Windows* Preview Updates.

This issue will not affect future monthly updates released for Windows. This update will not be offered to Windows devices that might be affected by this issue and we recommend that you do not attempt to manually install it on affected devices.

IT admins

Using the FixedDrivesEncryptionType or SystemDrivesEncryptionType policy settings in the BitLocker configuration service provider (CSP) node in mobile device management (MDM) apps might incorrectly show a 65000 error in the "Require Device Encryption" setting for some devices in your environment. Affected environments are those with the “Enforce drive encryption type on operating system drives” or "Enforce drive encryption on fixed drives" policies set to enabled and selecting either "full encryption" or "used space only". Microsoft Intune is affected by this issue but third-party MDMs might also pe affected.

Important This issue is a reporting issue only and does not affect drive encryption or the reporting of other issues on the device, including other BitLocker issues.

This issue is addressed in KB5034121.