Word will need to be closed as a result.
During an update, Word configures itself to work in compatibility mode.
Here you could follow the suggested methods below to get rid of this issue and recover lost Word documents.

Fix 1.
Second, selectYesin the pop-up window.
Now check whether the issue has been addressed.
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If not, you might try the other methods below.
Facing the Microsoft something went wrong 1200 error?
Read this article to find out solutions to get rid of it and re-login to your Microsoft account.

In this case, you should probably deactivate the compatibility mode.
Right-click theWord shortcuton your desktop to selectProperties.
Move on to theCompatibilitysection, then check that to uncheck theRun this program in compatibility mode foroption.
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Office stuck on we’re getting things ready?
Here you could see how to fix this Office installation stuck issue.
Fix 3.

Run Program Compatibility Troubleshooter
Some users reported thatrunning the program compatibility troubleshootersolved the problem.
Here you’re able to perform this action too.
On your desktop, right-click theWord shortcutto selectProperties.
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Go to theCompatibilitytab, and clickRun compatibility troubleshooter.
Wait for the process to complete and check whether the problem has been fixed.
What is the Program Compatibility Troubleshooter?

What if Program Compatibility Troubleshooter not working?
Read this post to get feasible solutions.
Fix 4.
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Edit Windows Registry Keys
The last way is to edit theWindows registrykey.
Note:Making any mistakes with the registry can cause serious problems with your system.
So, before proceeding with the steps below, pleaseback up the registry.

PressWindows + Rkey combinations to open Run.
Typeregeditin the text box and pressEnter.
Cut and paste the following location in the address bar and pressEnter:HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common
Step 4.

Find and right-click theExperimentfolder and selectDelete.
DeleteExperimentEcsandExperimentTasusing the same way.
Scroll down to find and expand theLicensingfolder.
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Step 7. kickstart your setup to ensure the issue has been fixed.
Here, a piece of professionaldata recovery softwareMiniTool Power Data Recoveryis recommended to you.
you’re free to download it and try it out.
MiniTool Power Data Recovery FreeClick to Download100%Clean & Safe
Step 1.
Launch MiniTool Power Data Recovery to get its main interface.
Under theLogical Drivessection, snag the target partition that contains your Word documents and clickScan.
Users folder is missing?