According to a recent report by technology outlet BornCity, user feedback highlights a critical issue. The out-of-band emergency Office update KB5002907 triggers widespread licensing failures. Furthermore, it causes applications like Word and Excel to run sluggishly. The flawed patch also prevents the successful installation of subsequent Windows 11 updates.
Widespread Activation Failures
Previously, developers designed this emergency patch to assist outdated systems. It aimed to help devices that had not received updates for over 90 days regain their upgrade capabilities. However, following the widespread rollout, numerous Windows 11 users reported severe complications. Versions such as Office 2016 and Office 2019 were abruptly disabled.
Regarding the specific symptoms, the majority of cases involve the sudden loss of activation information. Consequently, this glitch leaves the product in an unauthorized state. Interestingly, Microsoft stated that in exceedingly rare scenarios, the problematic update might completely uninstall the Office suite.
Performance Drops and Registry Errors
Beyond the aforementioned activation losses, users utilizing Microsoft Office Home and Business 2024 reported additional frustrations. Specifically, after installing the patch, closing Microsoft Word and Microsoft Excel became agonizingly slow. Therefore, subsequent Office updates failed to install properly.
Upon thoroughly inspecting their device, one user discovered a hidden technical flaw. Two crucial registry keys were inexplicably missing from the system. These specific paths reside within the AppPatch branch of the .NET Framework. They correspond directly to the core executable files:
reg query "HKLM\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\policy\AppPatch\v4.0.30319.00000\excel.exe"
reg query "HKLM\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\policy\AppPatch\v4.0.30319.00000\winword.exe"
Fixing the Cumulative Update Conflict
Additionally, attempting to install the KB5126052 patch immediately after applying KB5002907 returns a dreaded error. The system halts and displays the error code 0x800f0922. For context, KB5126052 serves as a cumulative update for .NET Framework 3.5 and 4.8.1. It specifically targets Windows 11 24H2, 25H2, and Microsoft Server OS 24H2.
Fortunately, the clever user resolved this frustrating dilemma using a quick workaround. They meticulously copied the missing registry keys using the command line. You can apply the exact same fix by running these commands:
reg copy "HKLM\SOFTWARE\Microsoft\.NETFramework\policy\AppPatch\v4.0.30319.00000\winword.exe" "HKLM\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\policy\AppPatch\v4.0.30319.00000\winword.exe" /s /f
reg copy "HKLM\SOFTWARE\Microsoft\.NETFramework\policy\AppPatch\v4.0.30319.00000\excel.exe" "HKLM\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\policy\AppPatch\v4.0.30319.00000\excel.exe" /s /f
