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WARNING: An Online Repair does an uninstall then a reinstall of Office, if something goes wrong in this process, you may need to reinstall Office manually which may require a product key Click Install and follow any prompts provided by the repair tool.Select the Reinstall or Repair button, click Next.Open Control Panel (Start>Settings>Control Panel).Click Continue, and then Start Diagnostics.On the Help menu, click Office Diagnostics.
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Click Change (may be listed as Modify).(Selection also say Microsoft Office 365 or Microsoft 365). Open up the Control Panel on your PC (and show All Control Panel items, if necessary) and click on Programs, then Programs and Features.
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