Issue Description
Windows may show “not activated” messages after hardware or system changes.
Common Causes
- Hardware replacement
- Wrong Windows edition
- Invalid product key
Step-by-Step Solution
Step 1: Check Activation Status
- Open Settings → System → Activation
Step 2: Run Activation Troubleshooter
- Click Troubleshoot
- Sign in with Microsoft account if prompted
Step 3: Re-enter Product Key
- Click Change product key
- Enter valid key → Next
Step 4: Contact Microsoft Support (If Needed)
- Use Get Help app for license transfer
Explore Further
- Verify edition compatibility
Prevention & Best Practices
Link Windows activation to a Microsoft account.