Outlook problems Fixed Via Known Issue Rollback (KIR) Windows 10 Update

Microsoft has confirmed lately the more bugs related to the patch day updates for Windows 10 and Windows 11. Since many users have experienced problems, the Windows dev team is now fixing the errors with the Known Issue Rollback KIR function.

Microsoft has fixed a known issue that caused Outlook users to experience search problems after installing the Windows 10 security updates released since November 2021. As the Windows team has now announced in a new post in the Windows Release Health Dashboard. writes, searches in the Outlook desktop app can fail and recent emails may not appear in search results if they are stored locally in PST or OST files. It states:

Affected: OS Build 19041.1387 KB5007253

Outlook search may not find recent emails:

• After installing KB5007253 or later updates, the latest emails may not appear in the search results of the Outlook desktop application. This issue applies to emails stored locally in a PST or OST file. It can affect POP and IMAP accounts, as well as Microsoft Exchange and Microsoft 365 accounts. If the default search in the Outlook application is set to Server Search, the issue affects only Advanced Search.
• Workaround: To mitigate the issue, you can disable Windows Desktop Search, which causes Outlook to use its built-in search. For instructions, see Outlook Search Does Not Show New Mail After Windows Update KB5008212.
• Solution: This issue is fixed with the Known Issue Rollback (KIR). Please note that it may take up to 24 hours for the fix to automatically roll out to personal devices and unmanaged corporate devices. If you restart your Windows device, the fix may be applied to your device faster. For enterprise-managed devices that have an affected update installed and are experiencing this issue, installing and configuring a special Group Policy (preferred) may resolve it.
• Important: Verify that you are using the correct Group Policy for your version of Windows.
• Group Policy:
• Windows 10, version 20H2, Windows 10, version 21H1, and Windows 10, version 21H2
• Windows 10, version 1809, Windows 10 Enterprise LTSC 2019, and Windows Server 2019.
• Affected platforms:
• Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019.
• Server: Windows Server, version 20H2; Windows Server, version 1809; Windows Server 2019.

Microsoft says it has already fixed the issues on affected Windows 10 devices either through Windows updates released on Monday or via the Known Issue Rollback (KIR) feature. Those receiving the fix via KIR may still need to be patient: “Please note that it may take up to 24 hours for the fix to automatically roll out to consumer devices and unmanaged enterprise devices.

Restarting your Windows device may help the solution apply to your device faster,” Microsoft said. While Microsoft has already found a solution to the Outlook search problem for Windows 10, it is still working on a solution for Windows 11.