Activation GuideWindows 115 min
Activating your Windows 11 license key takes only a few minutes. This guide covers every available method and what to do when activation fails.
Purchase your genuine Windows 11 key on DigitLicense.com — delivered by email in 2–5 minutes.
Method 1 — During Windows 11 Setup
Start Windows 11 installation
When prompted, select “I have a product key”.
Enter your key
Type your 25-character key: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX then click Next.
Activation completes automatically
Windows contacts Microsoft servers and activates. No further action needed.
Method 2 — After Installation
Open Settings
Press Win + I → System → Activation
Change product key
Click “Change” next to Product Key, enter your key and click Next.
Activation confirmed
You will see “Windows is activated” with a green checkmark.
Method 3 — Command Line
Open Command Prompt as Administrator and run:
then:
slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXXthen:
slmgr /atoActivation Error Codes
| Error | Meaning | Fix |
|---|---|---|
| 0xC004F074 | Server unreachable | Disable VPN, retry |
| 0xC004C003 | Key blocked | Contact support |
| 0x803F7001 | No valid license | Re-enter key in Settings |
| 0xC004E003 | Licensing failed | Run Windows Update first |
Does a Windows 10 key work on Windows 11?
Yes — Windows 10 Pro and Windows 11 Pro use the same key format. Genuine keys from DigitLicense work on both.
Can I transfer my key to a new PC?
Yes — retail keys can be moved. Sign in at account.microsoft.com, deactivate the old device, then activate the new one.
