Windows can be activated two ways, and knowing which you have makes reinstalls much smoother. Here’s the difference.
Product key
A product key is the classic 25-character code. You enter it during setup or in Settings to activate Windows.
Keep it recorded somewhere safe for future reinstalls.
Digital license
A digital license ties activation to your device’s hardware profile, and linking it to a Microsoft account lets Windows reactivate automatically after a reinstall or hardware change.
You often won’t need to type anything.
Why it matters for reinstalls
With a digital license linked to your account, a clean reinstall reactivates on its own. With a product key, keep the key handy to re-enter it.
Linking to a Microsoft account is the easiest long-term approach.
Frequently Asked Questions
Which is better?
Both give genuine Windows; a digital license is more convenient for reinstalls.
Do I type a digital license?
Usually not — it activates via hardware/account.
Should I link to a Microsoft account?
Yes — it simplifies reactivation after changes.
Two ways a license is stored
A digital license ties activation to your hardware (and optionally your Microsoft account), so Windows re-activates automatically after a reinstall. A product key is the 25-character code you type in to activate manually.
Many modern PCs use a digital license; a separately-purchased key gives you both a code and, once activated, a digital license.
Why it matters for reactivation
With a digital license linked to a Microsoft account, you can re-activate after a hardware change using the Activation troubleshooter. With only a product key, keep the code somewhere safe — you will need it if you reinstall.
Linking your license to a Microsoft account is the single best step for painless reactivation.
Which do I have?
If Windows activated without you typing a code, it is a digital license; a code you entered is a product key.
Can I reactivate after changing hardware?
Yes, most easily when the digital license is linked to a Microsoft account.
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