Security News > 2021 > November > Microsoft: Windows Installer breaks apps after updates, repairs
Microsoft has confirmed a new known issue impacting client and server Windows versions that breaks apps after updating or repairing them using the Windows Installer.
This issue affects systems where Windows users have installed cumulative updates released during this month's Patch Tuesday.
After installing one of these updates, "Microsoft Installer might have issues repairing or updating apps," the company says on the Windows Health dashboard.
Microsoft is also working on a resolution for another issue impacting Windows 11 customers that leads to blue screens of death on affected systems.
The new issue is caused by compatibility issues between integrated Intel Smart Sound Technology audio DSP drivers and Windows 11, version 21H2. Redmond has also added an update block to prevent devices with impacted Intel SST drivers from being offered the Windows 11 upgrade.
There're only two Windows 11 compatibility holds, with the other one blocking the upgrade from being offered to eligible systems running Oracle VirtualBox when Hyper-V or Windows Hypervisor are also installed.
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