SETUP GUIDE
How to Reinstall Microsoft Office Without Losing Documents
Safely uninstall and reinstall Office while protecting local documents, templates, Outlook data, and license access.
Reinstalling Office normally removes applications, not your documents, but locally stored Outlook data, custom templates, add-ins, and settings deserve a backup.
Back up first
Copy important documents and custom templates. Confirm cloud files are fully synchronized. Outlook users should identify where local archives and data files are stored. Record the licensed account—not the password—and verify access before uninstalling.
Reinstall sequence
- Use the operating system’s normal uninstall method or Microsoft’s official troubleshooter.
- Restart the computer after removal.
- Sign in to the account that owns or has the license.
- Download a fresh installer from Microsoft.
- Install, sign in, update the apps, and reconnect add-ins one at a time.
After reinstalling
Open several existing documents, confirm fonts and templates, and test Outlook profiles if applicable. A reinstall will not repair a damaged document, account outage, or unsupported add-in, so isolate those issues separately.
Frequently asked questions
Will uninstalling delete Word documents?
Usually no, but back up important files before any software change.
Do I need the product key again?
If it was already redeemed, the linked Microsoft account is commonly used for reinstalling.
Official source
Microsoft Support documentation. Product screens and eligibility can change; use Microsoft’s current instructions for your edition.