How to Activate Windows 11 Pro with a Product Key: Step by Step, Plus Upgrading from Home

To activate Windows 11 with a key, open Settings. Go to System, then Activation, and pick Change product key. Type the 25-character key and select Next. That's it for a new Pro install. On Windows 11 Home, the same steps with a Pro key move you up to Pro. But Microsoft says Home must be active first. When you're done, link your Microsoft account. That one step makes life much easier if you ever change your motherboard.

First, check where you stand

Before you type any key, see what you have now. Open Start, then Settings, then System, then Activation. Look for two things:

• Edition: does it say Windows 11 Home or Windows 11 Pro?
• Activation status: is it active or not?

Your next step depends on these two answers. Find your case below.

Case 1: You have Windows 11 Pro, not activated

This is the easy one. It often happens after a new install where you skipped the key.

1. Go to Settings, System, Activation.
2. Select Change product key.
3. Type your 25-character key. It looks like XXXXX-XXXXX-XXXXX-XXXXX-XXXXX.
4. Select Next and follow the prompts.

Make sure you're online. Windows needs the internet to check the key. When it works, the status turns to active. The "Activate Windows" mark in the corner goes away too.

Case 2: You have Windows 11 Home and want Pro

Lots of laptops come with Home. Pro adds extras like BitLocker, which locks your drive, and Remote Desktop. Here's how Microsoft says to upgrade with a key:

1. Check that your Home copy is already activated. Microsoft says these steps only apply to activated Home. If it isn't, activate Home first.
2. Go to Settings, System, Activation.
3. Next to Change product key, select Change.
4. If a User Account Control box appears, sign in as an administrator and select Yes.
5. Enter the 25-character Pro key and select Next.

Windows then moves up to Pro. Save your work and close apps first, in case it needs to restart. It's also smart to back up key files. Upgrades usually go fine, but a backup costs nothing.

Case 3: Windows 10 instead of 11

The steps are almost the same on Windows 10. The Activation page sits under Settings, Update & Security, Activation. If your PC can run Windows 11, though, it's worth moving up. Windows 10 home users only get security updates now through Microsoft's extended program, which runs until October 12, 2027. We explain that in our Windows 10 updates guide.

Don't skip this: link your Microsoft account

Once Windows is active, link it to a Microsoft account. Here's why. If you change the motherboard later, Windows may think it's a new PC. It can turn activation off. With a linked account, you can turn it back on yourself.

1. Make sure you're signed in as an administrator with a Microsoft account. In Settings, Accounts, Your info, you should see an email above the word "Administrator."
2. Go back to Activation and select Add an account.
3. Sign in with your Microsoft account.

The status should then say Windows is activated with a digital license linked to your Microsoft account.

After a hardware change

If you changed a big part, like the motherboard, and Windows says it's not activated:

1. Connect to the internet and sign in as an administrator.
2. Go to Settings, System, Activation, then Troubleshoot.
3. Select I changed hardware on this device recently, then Next.
4. Sign in with the linked Microsoft account.
5. Pick the device you're using and select Activate.

Microsoft has two rules here. The edition must match, so Pro stays Pro. And the fix tool only shows up when Windows isn't active. Never linked an account? Then try typing your product key again instead.

If the key doesn't work

Don't panic. First, check each letter and number again. It's easy to mix up 8 and B, or 0 and O. Next, make sure the key is for the right edition, like Pro. Then check your internet. If it still fails, write down the error code on the screen. Send it to our live chat, and we'll help you sort it out.

Keep your key safe

Microsoft only keeps records of keys bought from its own online store. For any other key, you're the one who keeps it. Save the order email or a screenshot somewhere safe, like your email or a cloud folder. On AroraShop, the key also stays in your Dashboard under Orders, so you can find it again later.

Need a key?

AroraShop sells Windows 11 Pro keys for ৳1,499 and Windows 10 Pro keys for ৳1,450. You can pay with bKash, Nagad, Rocket, or Upay, and the key arrives in your Dashboard. Get one on the Windows License Key page. Not sure which to pick? Our Windows 10 Pro vs 11 Pro guide helps you decide.

Frequently asked questions

Where do I enter a Windows 11 product key?

Go to Settings, then System, then Activation. Pick Change product key.

Can I upgrade Windows 11 Home to Pro with a key?

Yes. Type a Pro key under Change product key. Home must be active first.

Do I need the internet to activate Windows?

Yes. Windows checks the key online.

What happens to activation if I change my motherboard?

It may turn off. If your Microsoft account is linked, use the fix tool on the Activation page to turn it back on.

How do I know Windows is activated?

Look in Settings, then System, then Activation. The status tells you. The mark in the corner goes away too.

Does Microsoft keep a copy of my key?

Only for keys bought from its own online store. Save any other key yourself.

The short version

Check your edition. Type the key under Change product key. Link your Microsoft account once it's active. Moving up from Home? Make Home active first. And save your key somewhere safe. Our live chat answers in Bangla and English if you get stuck.

Get a Windows 11 Pro Key on AroraShop