OUR Microsoft confirmed the error in Windows 11 21H2the original version of the operating system, released last October, which prevents access to the operating system after adding a new user with Microsoft account. The problem occurs after installing the update KB5016691 went on sale in August.

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Windows 11 error prevents access to the system

According to the error description posted by Microsoft on the Windows Release Health websiteusers Windows 11 21H2 who installed the optional update KB5016691 became available on August 25 and added a new user to the operating system with a Microsoft account, you may experience problems logging in for a short time after the first reboot or after the first logout.

The company emphasizes that the issue only occurs after adding a new user with a Microsoft account. Problem does not affect users who sign in to Windows 11 21H2 with domain accounts from Active directory or Azure Active Directory.

For users experiencing the issue, Microsoft says just wait a bit until the OS lock screen reappears so they can log in normally. An important detail is that it is not necessary to uninstall the KB5016691 update. Microsoft already solved the problem on computers affected by this feature Known Issue Rollback (KIR) and therefore no user action is required.

For PCs managed in a corporate environment, administrators can download and apply Group Policy. KB5016691 220722_051525 Known issue rollback from by this link.

Reproduction / Microsoft

Known Issue Rollback (KIR)

For those who don’t know, KIR was originally announced in 2021 and basically helps a PC go back to a previous state in case an update installed via Windows Update caused a problem if it is connected to the internet.

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Microsoft says KIR is mainly aimed at fixing issues caused by updates without removing old code. In this case, the old code is disabled only when the new code is introduced with the fix. automatically by KIR. When the feature was first announced last year, Microsoft stated that it could take up to 24 hours for affected PCs to apply KIR after the issue caused by the update was discovered.

Windows 11 22H2 could be out September 20th
The first major OS update is ready

Via: Neowin.net Source: Microsoft

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