Last Updated: August 14, 2018
When you click the Signature button, Outlook hangs and you are not able to add a signature.
This issue occurs if you install an Office subscription on a PC that has pre-installed Microsoft Office desktop apps.
Note: This issue is fixed in Office Version 1802 (Build 9029.2167) or higher. When you install an Office Subscription with that build or higher, it will automatically remove the pre-installed Microsoft Office Desktop apps.
To workaround this issue, uninstall the pre-installed Microsoft Office Desktop Apps:
Right click the Windows Start button and click Settings.
Click Apps, and then click Apps and Features.
Choose Microsoft Office Desktop Apps and click Uninstall.
Restart your PC.
Run a repair of Office to make sure everything gets fixed.
If this method is unsuccessful, follow these steps to remove Office setup registry keys are still incorrectly remaining in the registry:
Note: Before you edit the registry, we recommend that you make a back up of your registry. If a problem occurs, you can then restore the registry to its previous state. Learn more about How to back up and restore the registry in Windows.
Press the Windows key + R to open a Run window.
Type regedit and click OK.
Press CTRL + F and enter 0006F03A-0000-0000-C000-000000000046 into the search box, then click Find Next.
Delete the key by right-clicking on the entry and click Delete.
Press F3 to repeat the search until no more registry keys are found.
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