There can be many reasons behind Microsoft Word not starting. Implement the following measures one by one when you find that your Microsoft Word Won’t Open.
• Start the application in Safe Mode to check whether add-ins are causing this issue. For it, keep holding the CTRL key and tap on the MS Word icon till it prompts you for Safe Mode confirmation. Disable all add-ins one by one and restart the application after disabling every add-in.
• Repair your Office installation through Quick Repair. You can also visit the customer support web page of Office.com for finding instructions on repairing your Office application.
