Windows 10 failing to launch into apps? This hotfix should sort it

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  • PCHF IT Feeds
    PCHF Bot
    • Jan 2015
    • 54578

    #1

    Windows 10 failing to launch into apps? This hotfix should sort it

    Microsoft has released a patch for an issue that arose from an earlier patch that sought to fix a different issue. The company has launched an out-of-band (OOB) update that fixes a problem that prevented applications downloaded from the Windows Store, from properly running on the computers.

    On April 25, Microsoft released the KB5011831 optional preview cumulative update, which seemingly broke how Control-flow Enforcement Technology (CET) works.

    Intel’s CET is supported by chips from 11th Generation Core ā€˜Tiger Lake’ CPUs onward, as well as some recent AMD processors. It is designed to keep the endpoints safe from the abuse of legitimate code through control-flow hijacking attacks.


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    [HEADING=1]Manually installing the patch[/HEADING]

    However, all updates from April 25 onwards broke how the safeguard works, prompting the operating system to engage these CET capabilities against legitimate applications downloaded from Microsoft’s applications store.

    Users affected by the problem should see 0xC002001B errors pop up, it was said.

    ā€œAfter installing KB5011831 or later updates, you might receive an error code: 0xC002001B when attempting to install from the Microsoft Store,ā€ Microsoft explained.

    ā€œSome Microsoft Store apps might also fail to open. Affected Windows devices use a processor (CPU) which supports Control-flow Enforcement Technology (CET), such as 11th Gen and later Intel Core Processors or later and certain AMD processors.ā€

    To address the issue, Microsoft released the KB5015020 cumulative update. It won’t be installed automatically, meaning users need to manually apply the patch to fix the problem.

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    Administrators can import the update into Windows Server Update Services (WSUS), and the Microsoft Endpoint Configuration Manager, BleepingComputer noted.

    WSUS instructions are available on the WSUS and the Catalog Site and Configuration Manager instructions on the Import updates from the Microsoft Update Catalog page.

    Devices affected by the issue include those running Windows 10 21H2, 21H1, and 20H2.

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    Via: BleepingComputer

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