Windows activation looks simple from the outside: your PC is either activated or it isn't. Open Settings and you'll see one of two terms — “digital license” or “product key” — and it's easy to confuse them. Are they the same thing? Can you switch between them? What happens to your license if you reinstall Windows or replace your motherboard?
Quick answer: a product key is the 25-character code you enter to activate Windows. A digital license (Microsoft calls it a digital entitlement) is the keyless activation record Windows stores on Microsoft's servers for your hardware. Enter a valid key once and Windows records a digital license for that device — so in practice, most people end up with both.
What Is a Digital License in Windows?
Microsoft calls a digital license a digital entitlement in Windows 11. It's a method of activation that doesn't require you to enter a product key. Instead, the license is recorded on Microsoft's activation servers and tied to the hardware configuration of your device. If you sign in with a Microsoft account, the license is also linked to that account.
When you reinstall the same edition of Windows on the same device, Windows contacts Microsoft's servers and activates automatically. There's no 25-character code to type, no sticker to keep, and nothing to lose — as long as your hardware doesn't change significantly.
You typically end up with a digital license when:
- You upgraded to Windows 11 for free from a genuine copy of Windows 10, Windows 8.1, or Windows 7
- You bought Windows 11 or a Windows 11 Pro upgrade from the Microsoft Store app
- You're a Windows Insider who upgraded to a newer build on an eligible device
Microsoft strongly recommends linking your Microsoft account to your digital license. If you do, you can use the Activation troubleshooter to reactivate Windows after a significant hardware change. Microsoft's Activate Windows guide lists every scenario in detail.
What Is a Windows Product Key?
A Windows product key is a 25-character code that looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. You enter it during installation or later from Settings, and Windows contacts Microsoft's servers to confirm the key is valid before it activates.
You get a product key when:
- You bought a PC that came with Windows 11 preinstalled — the key is on the packaging or on the Certificate of Authenticity (COA) attached to the device
- You bought a boxed copy from an authorized retailer — the key is on a label inside the box
- You bought a digital copy from an authorized retailer — the key is in the confirmation email or a digital locker on the retailer's site
- You have a Volume Licensing agreement or MSDN subscription — the key is available through the program's web portal
A product key is a tangible thing you can store, back up, and — depending on the license type — transfer. The catch: if you lose it, you can't activate Windows with it. Microsoft's guidance is to check your confirmation email, the packaging, or the Certificate of Authenticity.
Digital License vs Product Key: Key Differences
Here's the comparison at a glance:
| Feature | Product Key | Digital License |
|---|---|---|
| Format | 25-character code | No code — entitlement record |
| Visibility | Visible: email, sticker, box | Invisible: nothing to find on your PC |
| Where it's stored | You keep it (email, box, COA) | Microsoft activation servers, tied to hardware |
| Reinstall on the same PC | Re-enter the key | Activates automatically |
| After a hardware change | Re-enter the key or use the troubleshooter | Run the Activation troubleshooter |
| Transfer to another PC | Retail: yes. OEM: no | Hardware-bound; retail can move via the troubleshooter |
| Can you find it later? | Yes, if you saved it | No — there is nothing to extract |
How to Check Which Activation Method You Have
Checking takes about thirty seconds:
- Select Start, then open Settings
- Go to System, then Activation
- Read the status message under Activation state
Here's what each status means:
- “Windows is activated” — you activated with a product key and haven't linked a Microsoft account
- “Windows is activated with a digital license” — you have a digital license, but your Microsoft account isn't linked to it
- “Windows is activated with a digital license linked to your Microsoft account” — the ideal state; reactivation after hardware changes is straightforward
- “Windows is not activated” — you need a valid product key or digital license
How a Product Key Becomes a Digital License
Here's the part that confuses most people: a product key and a digital license are not mutually exclusive. When you enter a valid product key and Windows activates, Microsoft records a digital license for that device. From then on, you can reinstall the same edition on the same hardware without typing the key again.
Microsoft puts it directly: “A digital license will be given to your device for Windows 11 based on the valid product key you entered.” That's why a genuine retail key is a smart purchase — you get the portability of a key and the convenience of a digital license. That's exactly what you get with a Windows 11 Pro retail license key from Licendi: activate once, and your device keeps its entitlement.
What Happens When You Reinstall Windows?
If you have a digital license, reinstalling is painless. During setup, when Windows asks for a product key, select “I don't have a product key.” Windows activates automatically once it's online — just sign in with the Microsoft account linked to your digital license.
If you activated with a product key, you'll re-enter that key during installation. If you skipped it during setup, you can add it later: Start > Settings > System > Activation > Change product key.
One rule applies to both methods: the edition must match. A digital license or product key for Windows 11 Pro won't activate Windows 11 Home, and vice versa. If you're deciding between editions, our Windows 11 Pro vs Home comparison helps you choose.
What Happens After a Hardware Change?
Windows licenses are tied to your device's hardware, mainly the motherboard. If you replace the motherboard, Windows treats the PC as a new device and activation is lost. Microsoft's Reactivating Windows after a hardware change page explains the full process.
To reactivate after a hardware change:
- Before the change, sign in with the same Microsoft account you used before and link it to your digital license
- After the change, go to Settings > System > Activation and run the Activation troubleshooter
- If you activated with a product key, re-enter it via Change product key
- If you have a valid key and the troubleshooter doesn't work, activate by phone: type SLUI 04 in the search box on the taskbar and follow the instructions. Note that Windows 11 Pro EDU and Windows 11 Pro for Workstations must activate online
Can You Transfer Your License to Another PC?
Transferability depends on the license type, not the activation method:
- OEM licenses are tied to the first device they're installed on and generally can't be moved to another PC
- Retail licenses can be transferred, one PC at a time, and Microsoft supports moving a retail license to new hardware through the Activation troubleshooter
If you're deciding between license types, our Windows 11 OEM vs Retail guide explains the difference in detail. The short version: retail gives you transfer rights, while OEM is cheaper but locked to one machine.
Which Should You Choose When Buying Windows?
Both methods end with an activated, working Windows — the real question is what you're buying. A product key is the tangible license you purchase; the digital license is what Windows records on your hardware afterward. For most buyers, the practical choice comes down to license type:
- Choose a retail key if you want transfer rights and the option to move your license to a new PC later. A Windows 11 Pro retail key is the flexible option.
- Choose an OEM key if you're building a PC or upgrading a machine you plan to keep, and you want the lowest price. A Windows 11 Pro OEM key fits that scenario.
Whichever you choose, buy from a retailer that delivers the key instantly and provides clear activation instructions. Browse all Windows operating system licenses or visit the Microsoft brand hub to see what's available.
Frequently Asked Questions
Can I convert a digital license into a product key?
No. A digital license is an entitlement record on Microsoft's servers, not a code. There is nothing to extract from your PC, and Microsoft doesn't provide a way to generate a product key from a digital license.
Can I find my digital license on my PC?
No. If Windows is activated with a digital license, no product key is stored on the device. Some OEM PCs have a product key embedded in the firmware — you can view it by running wmic path SoftwareLicensingService get OA3xOriginalProductKey in Command Prompt — but that only works when a key actually exists.
Do I need a product key to reinstall Windows?
Only if you don't have a digital license. With a digital license, select “I don't have a product key” during setup and Windows activates automatically after you sign in.
Is my digital license transferable?
Digital licenses are hardware-bound. If your license came from a retail product key, you can move it to new hardware with the Activation troubleshooter. OEM licenses stay with the original device.
The Bottom Line
The difference between a digital license and a product key comes down to one idea: the key is what you buy, and the digital license is what Windows remembers. Keep your key safe, link your Microsoft account, and match your edition — and activation will be the least of your worries.
Need a genuine Windows 11 key? Licendi delivers licensed product keys instantly by email, with activation instructions included. Compare Windows 11 Pro retail and OEM options today.
Accuracy & Sources
All activation claims in this guide were verified against Microsoft's official documentation, linked throughout the article: the Activate Windows support page, the hardware change reactivation guide, and Microsoft's activation error reference. Licendi's prices are shown on the product pages, and every key we sell is a genuine Microsoft license with instant digital delivery.