Sometimes, if a SharePoint solution is removed from a SharePoint farm, the features that were active in a site from this solution will still persist. This may cause upgrade or migration issues, most commonly when you run the SharePoint Product Configuration Wizard.
!Make sure to have a full back-up of your data before proceeding with these steps!
How to remove missing features from your site(s) and content database(s) on SharePoint 2010, 2013 and 2016:
- Download the FeatureAdmin program (https://github.com/achimismaili/featureadmin/tree/master/Releases/3.0.4).
- Extract the zip (or download the executable) to your SharePoint Central Administration machine.
- Start the application "FeatureAdmin.exe".
- The application will automatically gather the information from your SharePoint farm.
- Check if the application has discovered your web applications etc. in order to proceed. You should not see the word DEMO in the application title (top right).
- Once loaded correctly, go to the tab "Cleanup" which you can find on the right side of the screen.
- If the application can find any missing or incorrect active feature, it should show this in the table with the feature title "Faulty, orphaned feature".
- Cross-check these features and see if these are indeed features that are missing from your farm and can be disabled.
- Click on the icon "Clean up (deactivate) all faulty features in the farm" which is the fourth icon
.
- Once completed, click the option "Reload farm" in the top left to check for more missing features.
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