• In the search box on the taskbar, enter device manager, then select Device Manager.
• Select a category to see names of devices, then right-click (or press and hold) the one you’d like to update.
• Select Search automatically for updated driver software.
• Select Update Driver.
• If Windows doesn’t find a new driver, you can try looking for one on the device manufacturer’s website and follow their instructions.

• In the search box on the taskbar, enter device manager, then select Device Manager.
• Right-click (or press and hold) the name of the device, and select Uninstall.
• Restart your PC.
• Windows will attempt to reinstall the driver.

Open Command Prompt as administrator (search for it within the Windows start menu > right-click > run as administrator)
– Enter: sfc /scannow

– Once the scan finishes, enter: dism /online /cleanup-image /restorehealth

– Once the scan finishes, reboot

– Once rebooted, login and check if the registry entry exists

• Repair Office application

  

If the issue is not fixed Remove and reinstall Office suite 

Open control panel -Click on uninstall programs and features-Search for Microsoft Office in the list.

Select Microsoft Office and click on uninstall.

Go to www.office.com and if you’re not already signed in, select Sign in

1. Sign in with the account you associated with this version of Office. This account can be a Microsoft account, or work or school account.

After signing in, follow the steps that match the type of account you signed in with

1. From the Office home page select Install Office.

Select Install (or depending on your version, Install Office>).

Install Office

From your browser, select Run (in Edge or Internet Explorer), Setup (in Chrome), or Save File (in Firefox).

If you see the User Account Control prompt that says, Do you want to allow this app to make changes to your device? select Yes.

The install begins.

You’re all set! Office is installed now