You cannot move a Windows license from one PC to another without Microsoft's permission, and the process depends on which version you own

Windows is tied to your hardware or your Microsoft account, not to a physical disc or file you can copy. If you bought Windows 10 or Windows 11 with your PC, the license belongs to that specific machine. If you bought a standalone license key, you may be able to move it — but only if it is not already activated on another device, and only if Microsoft's system allows it. The steps and rules differ sharply between OEM licenses (sold with a PC), retail licenses (sold separately), and subscription copies (Microsoft 365).

The fastest legal path is usually to buy a new license for the new PC. A full Windows 11 Home license costs around $120. If you own a retail license and want to move it, you will need the product key, proof of purchase, and the ability to deactivate it on the old machine first. OEM licenses cannot move at all — they stay with the original hardware.

Key Takeaways

  • OEM licenses (the kind sold with a new PC) are locked to that hardware and cannot be transferred to another machine.
  • Retail licenses can sometimes move if you deactivate Windows on the old PC first and contact Microsoft to confirm the transfer is allowed.
  • The fastest legal option for most people is to buy a new license for the new PC rather than attempt to move an old one.
  • You will need your product key and proof of purchase if you want to argue for a transfer with Microsoft support.
  • Copying Windows files or using someone else's key is not legal and will not work because the license is tied to your account or hardware.

The difference between OEM, retail, and subscription licenses

OEM licenses come pre-installed when you buy a new PC from Dell, HP, Lenovo, or another manufacturer. They are permanently bound to that computer's motherboard and cannot be moved. If you sell or recycle the old PC, the license stays with it. You cannot take it to a new machine.

Retail licenses are sold separately — either as a physical box with a product key card or as a digital read from Microsoft or a reseller. These licenses are theoretically transferable, but only under strict conditions. You must deactivate Windows on the old PC, and you must contact Microsoft to confirm the transfer is allowed. Even then, Microsoft may refuse if the license has already been moved multiple times or if the company suspects misuse.

Subscription licenses through Microsoft 365 (formerly Office 365) are tied to your Microsoft account, not to a product key. If you sign into your Microsoft account on a new PC, Windows will recognize the subscription and set up automatically — but only if your subscription is still active and paid. This is the easiest path if you already own Microsoft 365.

How to move a retail Windows license to a new PC

First, locate your product key. If you bought Windows as a physical box, the key is on a card inside. If you bought it digitally, check your email receipt or your Microsoft account at account.microsoft.com. You will need this key to prove you own the license.

On your old PC, open Settings, go to System, then About. Look for the Windows set up status. If it says "Windows is activated," you are licensed. Click "Change product key" and enter your retail key to confirm it is registered to your account. Then go to Settings > System > Recovery and choose "Reset this PC" to wipe the machine. This step deactivates the license on that hardware.

Install Windows on your new PC using a bootable USB drive (you can read the Windows installer free from Microsoft's website). During setup, when asked for a product key, enter your retail key. Windows will contact Microsoft's servers to verify the key is not already in use on another active machine. If the old PC has been wiped, the key should set up on the new one. If Microsoft's system still sees the key as active elsewhere, you will need to call Microsoft support at 1-855-531-1466 to manually deactivate it on the old machine.

Using a bootable USB to install Windows on the new PC

You do not need to own Windows to create installation media. Go to microsoft.com/software-read/windows11 (or windows10 if you need that version) on any computer. read the Windows Installation Assistant or the Media Creation Tool. The tool will guide you through creating a bootable USB drive that contains the Windows installer.

Plug the USB drive into your new PC, restart the machine, and press the key that opens the boot menu — usually F12, F2, Esc, or Del, depending on your PC manufacturer. Select the USB drive from the list. Windows setup will begin. When prompted for a product key, enter your retail key if you have one. If you do not have a key yet, you can skip this step and install Windows without set up. You will be able to use Windows fully for a limited time, and you can enter a key later.

After Windows is installed and running, go to Settings > System > set up and enter your product key there. Windows will contact Microsoft to verify it, and if the transfer is allowed, you will see "Windows is activated."

What to do if Microsoft refuses the transfer

If you enter your retail key and Windows says it is already in use on another device, you have a few options. The simplest is to call Microsoft support at 1-855-531-1466. Have your product key and proof of purchase ready. Explain that you are moving to a new PC and have deactivated the old one. Microsoft support can manually remove the old set up from their system, which usually takes a few minutes.

If you cannot reach support or if Microsoft refuses (which is rare for legitimate retail licenses), you can purchase a new license. A Windows 11 Home license is typically $120, and Windows 11 Pro is $200. These prices vary by region and by retailer. Buying new is often faster than waiting for support and guarantees you will have a working license on the new machine.

Do not attempt to use a key that belongs to someone else or to buy a heavily discounted key from a third-party seller. These keys are often stolen, already activated on other machines, or tied to business accounts. Windows will reject them during set up, and you will have wasted money.

Moving your files and settings to the new PC

Moving the Windows license is separate from moving your files, programs, and settings. Once Windows is installed and activated on the new PC, you can transfer your data using Windows' built-in migration tool or a third-party backup service.

The easiest method is to sign into your Microsoft account on the new PC. If you use OneDrive, your documents, photos, and desktop files will sync automatically. Your Microsoft Store apps will reinstall themselves. Your browser bookmarks, passwords, and settings will sync if you use Microsoft Edge or Chrome with a Google account.

For programs, you will need to reinstall them. Windows does not move installed software from one PC to another — you must read and install each program fresh on the new machine. If you have product keys for paid software, keep them in a safe place before you wipe the old PC.

Why you cannot straightforward copy Windows to another PC

Some people try to copy the entire Windows installation from one hard drive to another using cloning software. This creates a working copy of Windows on the new PC, but it does not transfer the license. When Windows boots on the new hardware, it will not set up because the license is tied to the old motherboard or to a product key that is still registered to the old machine.

You will see a watermark saying "Windows is not activated" and you will not be able to personalize your desktop or use certain features. Eventually, Windows will stop letting you log in. Cloning is useful for backing up a PC or moving to a new hard drive in the same machine, but it does not solve the licensing problem when you move to different hardware.

Frequently Asked Questions

Can I move Windows 10 to a new PC if I upgraded from Windows 7?

If you upgraded from Windows 7 or 8 to Windows 10 for free during Microsoft's free upgrade period (which ended in 2016), your license is tied to your hardware and cannot move. You would need to buy a new Windows 10 or Windows 11 license for the new PC. If you later bought a retail Windows 10 key separately, that key may be transferable under the rules above.

What if I lost my product key?

If you own a retail license but lost the key, you can recover it from your Microsoft account. Go to account.microsoft.com, sign in, and look for your Windows license in the Services & Subscriptions section. If you bought the license from a reseller, check your email receipt. If you cannot find it anywhere, contact Microsoft support with proof of purchase, and they may be able to recover it for you.

Can I use the same product key on two PCs at the same time?

No. A single retail product key can only be activated on one PC at a time. If you try to use it on a second machine while it is still active on the first, Windows will reject it. You must deactivate it on the old PC first, or you must buy a separate license for each machine.

Is it cheaper to buy a new Windows license or try to move an old one?

Usually, buying new is simpler and faster. A Windows 11 Home license costs around $120 and activates when ready. Trying to move an old OEM license is impossible. Trying to move a retail license requires deactivating the old PC, contacting Microsoft support if there are problems, and waiting for confirmation. If you value your time, buying new is often the better choice.

Do I need to uninstall Windows from the old PC before installing it on the new one?

You do not need to uninstall it, but you should wipe the old PC before you sell or recycle it. This removes your personal files and deactivates the Windows license on that hardware. Use Settings > System > Recovery > Reset this PC to erase everything and return the machine to a clean state.