Microsoft Word: Uninstall Secured Signing Plugin on Microsoft Word Desktop

Step 1: Go My Add-ins popup

In Insert tab > Click My Add-ins button to load My Add-ins popup.
In My ADD-INS list, you will find Secured Signing for Word, mouse hover it, then click the 

Step 2: Confirm removing action

Click Remove menu item.
Confirm to remove by click remove button in the popup

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