Licensing Guide📅 Sep 14, 2026 • ⏱️ 8 min read

How to Transfer a Windows License
to a New PC (2026 Guide)

Building or buying a new computer? You may be able to move your existing license instead of buying a new one. Here's exactly how to transfer a Windows license to a new PC — and when you can't.

Quick answer: Retail Windows licenses can be transferred to a new PC after you deactivate them on the old one. OEM licenses are tied to the original motherboard and cannot be transferred.

Retail vs OEM: Can You Transfer Your Key?

License TypeTransferable?Notes
RetailYesMove to a new PC unlimited times after deactivating the old one.
OEMNoLocked to the first motherboard it activated on.
Volume / MAKSometimesDepends on the agreement; usually managed by an organization.

Not sure which you have? Our OEM vs Retail Windows keys guide explains how to check.

Step 1: Deactivate Windows on the Old PC

  1. Open Command Prompt as Administrator.
  2. Run slmgr /upk to uninstall the current product key.
  3. Run slmgr /cpky to clear the key from the registry.
  4. The license is now released and ready to use on another PC.

Step 2: Activate Windows on the New PC

  1. On the new PC, open Settings → System → Activation.
  2. Choose Change product key and enter your 25-character key.
  3. If online activation is blocked because of a hardware change, use phone activation (run slui 4).

Need the full activation walkthrough? See our Windows 11 activation guide.

Tip: Link Your License to a Microsoft Account

Signing into Windows with a Microsoft account creates a digital license. After a hardware change you can then use the Activation Troubleshooter ("I changed hardware on this device recently") to reactivate without re-entering the key.

When It's Cheaper to Just Buy a New Key

If your old license is OEM, or transferring is more hassle than it's worth, a genuine cheap Windows 11 key starts at just $12.99 — often less than the time spent troubleshooting a transfer.

Need a Fresh Windows License?

Genuine Windows 10 & 11 keys from $12.99 — instant delivery and lifetime activation.