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You can upgrade an activated Windows 11 Home installation to Pro without reinstalling Windows: buy the upgrade through Microsoft Store or enter a valid Windows 11 Pro product key. If the device already has a Pro digital license, the Activation troubleshooter may offer the upgrade. Check your edition and activation status first in Settings > System > Activation.
What Windows 11 Pro adds
Microsoft lists BitLocker Drive Encryption, Remote Desktop, and the ability to join a domain or Microsoft Entra ID among Windows 11 Pro capabilities. Consider upgrading if you need one of these features for your device or organization.
| Route | Use it when | What to expect |
|---|---|---|
| Microsoft Store | You do not already have a Pro product key and want to buy the upgrade. | Microsoft recommends this route; Store guides you through purchase and installation. |
| Product key | You already have a valid Windows 11 Pro key. | Enter the key in Activation settings to start the edition upgrade. |
| Activation troubleshooter | The device has a Pro digital license but currently has Home installed. | The troubleshooter may offer an option to upgrade to Pro. |
Before you upgrade
- Open Settings > System > Activation.
- Confirm the installed edition is Windows 11 Home.
- Check that the activation state says Windows is activated. Microsoft’s documented manual upgrade steps apply to an activated Home installation; resolve Home activation first if needed.
- Decide whether you have a Pro product key, an existing Pro digital license, or need to buy the upgrade.
A product key is a 25-character code. A digital license is an entitlement that does not require entering a key. Microsoft says a Microsoft Store purchase of the Windows 11 Pro upgrade provides a digital license rather than a product key. Microsoft explains the difference between product keys and digital licenses.
Method 1: Upgrade through Microsoft Store
Microsoft Support says, “The best way to upgrade from Windows 11 Home to Windows 11 Pro is through the Microsoft Store.” The Store checks the Home installation and guides you through the purchase and installation process.
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- Open Settings > System > Activation.
- Expand Upgrade your edition of Windows.
- Next to Upgrade in the Microsoft app, select Open Store.
- Review the offer and follow the Store prompts to purchase the upgrade. Sign in with the Microsoft account you want associated with the purchase.
- After purchase confirmation, follow the Windows prompt to install Pro and restart when requested.
- When the upgrade finishes, return to Settings > System > Activation and verify the edition and activation state.
If the upgrade section or Store button is absent, the device may already be running Pro or the edition upgrade may not be available for that installation. Check the edition on the Activation page.
Method 2: Upgrade with a Windows 11 Pro product key
Use this route if you already have a valid Windows 11 Pro key. The documented manual upgrade requires activated Windows 11 Home, and the Windows edition must match the license. See Microsoft’s Windows Home to Pro upgrade guidance.
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- OEM IS TO BE INSTALLED ON A NEW PC WITH NO PRIOR VERSION of Windows installed and cannot be transferred to another machine.
- OEM DOES NOT PROVIDE PRODUCT SUPPORT | To acquire product with Microsoft support, obtain the full packaged “Retail” version.
- Open Settings > System > Activation.
- Under Change product key, select Change.
- If User Account Control asks, provide administrator credentials or approve the prompt.
- Enter the 25-character Windows 11 Pro key and select Next.
- Follow the prompts to start the upgrade. Restart if requested.
- After it finishes, return to Settings > System > Activation and check the edition and activation state.
If you bought a key from a retailer, its delivery method depends on the purchase channel; it may be provided with packaging, in a confirmation email, or in a digital locker. Microsoft’s guide explains where to find a Windows product key.
Method 3: Use an existing Pro digital license
If the device has a Windows 11 Pro digital license but Home is installed, try the Activation troubleshooter rather than buying another license.
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- Open Settings > System > Activation and select Troubleshoot.
- If the troubleshooter identifies the Pro license, select Upgrade to Windows 11 Pro.
- Select Start upgrade and let the process finish.
The device may take a while to upgrade and cannot be used until the process finishes. Read Microsoft’s instructions for the Windows Activation troubleshooter.
After the upgrade
Open Settings > System > Activation and verify that Windows shows the Pro edition and an activated state. If activation does not complete, confirm that the license matches the installed edition and use Microsoft’s Windows activation guidance.
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- Reassuringly consistent. Have confidence that your applications will work. Familiar deployment and update tools. Accelerate adoption with expanded deployment policies.
- Powerful security. Safeguard data and access anywhere with hardware-based isolation, encryption, and malware protection built in.
Do not assume a Windows Home digital license by itself grants Pro. Use a Pro entitlement, and avoid arbitrary online keys whose legitimacy or edition compatibility you cannot verify.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.FAQ
How do I upgrade Windows 11 Home to Pro?
Open Settings > System > Activation. Use Open Store to buy the upgrade, enter a valid Pro product key, or run the Activation troubleshooter if the device already has a Pro digital license.
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Can I upgrade Windows 11 Home to Pro without reinstalling?
Yes. Microsoft’s supported Store and product-key routes upgrade the existing activated Home installation; follow the prompts and restart if requested.
Do I need a product key to upgrade to Windows 11 Pro?
Not necessarily. You can buy the upgrade through Microsoft Store, which Microsoft says provides a digital license rather than a key, or use an existing Pro digital license if the troubleshooter offers the upgrade. A valid Pro product key is another supported route.
How do I activate Windows 11 Pro after upgrading?
Check Settings > System > Activation after the upgrade. Verify that the edition is Pro and that Windows is activated. If it is not activated, confirm that your license matches the installed edition and follow Microsoft’s activation guidance.
Is upgrading to Windows 11 Pro worth it?
It depends on whether you need Pro capabilities such as BitLocker Drive Encryption, Remote Desktop, or joining a domain or Microsoft Entra ID. Check the current Microsoft Store offer before deciding to buy.
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