On a Windows 10 device that has already been enrolled in the Windows 10 Consumer ESU program and fully updated, the error message “Your device is missing important security and quality fixes” may still appear in the Windows Update settings page.
This error is supposed to appear on systems that are not enrolled in the Windows 10 Consumer ESU program. However, on some systems, the error persists even after ESU enrollment and the latest ESU cumulative update installation.
The problem is caused by stale entries in the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WaaSAssessment
Resolution
Please download WaaS-reset.reg (zipped). Unzip and run the enclosed REG file. Click Yes to confirm.
Restart Windows.
Additional info
Here’s the contents of the REG file:
Windows Registry Editor Version 5.00 [-HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WaaSAssessment] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WaaSAssessment] "Endpoint"="settings-win.data.microsoft.com" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WaaSAssessment\Cache] "UpToDateStatus"=dword:00000000 "UpToDateImpact"=dword:00000000 "UpToDateDays"=dword:00000000
(The above solution is courtesy of abbodi86, an update expert who posted the fix at Microsoft Learn Q&A.)
Open Settings and check for updates. The error should no longer occur.
Related Links
Microsoft: device missing important security and quality issues – Microsoft Q&A
Microsoft: Windows 10 Extended Security Updates | Microsoft Windows
Reddit: MAS activated Windows 10 ESU not working anymore on newly installed Windows 10?
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