Quick answer: Run Product Key Recovery Tool before formatting. It scans the registry for Windows, Office, Adobe, and 10,000+ other software titles and exports all found keys to a single backup file in seconds.
What Gets Lost When You Format
A clean Windows install wipes the registry. Every software license key stored there is gone. This includes Windows (if you have a traditional product key), standalone Office versions, older Adobe products, games, developer tools, and any paid application that stores its activation code locally.
What is safe (does not need backup):
- Microsoft 365 subscription — tied to Microsoft account, reinstall at office.com
- Adobe Creative Cloud subscription — sign in at creativecloud.adobe.com
- Steam games — tied to Steam account, reinstall freely
- Windows with Digital License — reactivates automatically on same hardware
What DOES need backup:
- Windows with a traditional product key (retail, volume licensing)
- Standalone Office 2019, 2016, 2013 — one-time purchase
- Adobe CS6 and older perpetual products
- Games without account-based DRM
- Any paid desktop software purchased outside of an app store
Method 1: Product Key Recovery Tool (Recommended)
Product Key Recovery Tool scans all registry hives and known storage locations, identifies installed licensed software, and exports every found key to a backup file.
Product Key Recovery Tool
Scans 10,000+ software titles and exports every license key before you format. One tool, one scan, complete backup.
- ✓ Windows, Office, Adobe, Autodesk, games and more
- ✓ Identifies subscription vs standalone automatically
- ✓ Export all keys to TXT, CSV or HTML
- ✓ Free trial shows every key before purchase
Method 2: Manual Registry Check
For specific software, keys may be found in the registry at:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion (Windows key)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office (Office key)
However reading raw registry values requires decoding — Product Key Recovery Tool handles this automatically for all supported software.
Frequently Asked Questions
Pre-Format License Key Checklist
- ☐ Run Product Key Recovery Tool and export all keys
- ☐ Save the export to a USB drive
- ☐ Confirm Windows activation type (digital license vs product key)
- ☐ Note Office edition (Home, Professional, etc.)
- ☐ Verify Adobe and game license details