Important information about the Windows Security Update for Office 2016
Information about Access databases in connection with the Windows Security Updates for Office 2016 (KB5002099 and KB5002115)
The Windows Security Update for Office 2016 dated December 14, 2021 (KB5002099) rolled out a buggy Access Database Engine. Opening Access databases on network drives is no longer possible.
With the Windows Security Update for Office 2016 dated January 11, 2022 (KB5002115), access to Access databases is still not possible despite the announced fix.
See Description of the security update for Office 2016: December 14, 2021 (KB5002099) (microsoft.com)
See Description of the security update for Office 2016: January 11, 2022 (KB5002115) (microsoft.com)
If you cannot open Access databases after the update, please uninstall the last security update (KB5002099 or KB5002115) until Microsoft fixes the problem.
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