How to Upgrade from Windows 11 Home to Pro (Step by Step)

Here is how to upgrade from Windows 11 Home to Pro: open Settings → System → Activation, select Change product key, enter a 25-character Windows 11 Pro key, and let Windows restart. The upgrade switches the edition in place, keeps your files, apps and settings, and usually finishes in under 30 minutes. Your current Home installation should be activated before you start.

Can You Upgrade From Windows 11 Home to Pro Without Reinstalling?

Yes, you can upgrade from Windows 11 Home to Pro without reinstalling Windows. Home and Pro are built on the same code, and the Pro features (BitLocker, Remote Desktop hosting, Hyper-V, Group Policy and more) are already present on disk but locked. A Pro key simply unlocks them.

That is why the process is quick and non-destructive. Windows does not copy a new operating system onto your drive; it changes the edition label, enables the extra components and restarts. If you are still deciding whether you need Pro at all, our comparison of Windows 11 Home vs Pro sets out the differences feature by feature.

What Do You Need Before Upgrading to Windows 11 Pro From Home?

To upgrade to Windows 11 Pro from Home you need an activated Windows 11 Home PC, an administrator account, an internet connection and a valid Pro product key, or a Microsoft account to buy the upgrade in the Microsoft Store.

• Activated Home edition. Microsoft's guidance says the in-place upgrade applies to devices already running an activated copy of Home. If Home is not activated, activate it first.
• Not in S mode. Windows 11 in S mode only exists in the Home edition. Switch out of S mode first (it is free but one-way), using the Switch to Windows 11 Pro section on the Activation page rather than the Upgrade your edition link.
• Matching N edition. If your PC runs Windows 11 Home N, the European edition without bundled media apps, use a Pro N key so the edition family matches.
• A backup. The upgrade keeps your data, but backing up important files before any system change is a sensible habit.

How to Upgrade From Windows 11 Home to Pro With a Product Key

The fastest way to upgrade from Windows 11 Home to Pro is to enter a Pro product key on the Activation page; the whole process runs inside Settings.

1. Save your work and close open apps.
2. Open Settings → System → Activation and confirm the edition shows Windows 11 Home and the state shows Active.
3. Expand Upgrade your edition of Windows, then next to Change product key select Change.
4. If User Account Control asks for permission, select Yes.
5. Enter your 25-character Windows 11 Pro key and select Next.
6. Select Start to begin the upgrade. Windows prepares the Pro features and restarts, sometimes more than once.
7. After signing back in, return to Settings → System → Activation and confirm it now shows Windows 11 Pro and Active.

You can use a dedicated Windows 11 Home to Pro upgrade key or a full Windows 11 Pro product key. A Windows 10 Pro key also works for this upgrade, because Windows 11 Pro accepts Windows 10 Pro keys.

How to Upgrade to Windows 11 Pro From Home Through the Microsoft Store

If you do not have a key, you can upgrade to Windows 11 Pro from Home by buying the upgrade inside the Microsoft Store.

1. Open Settings → System → Activation.
2. Expand Upgrade your edition of Windows.
3. Next to Upgrade in the Microsoft app, select Open Store.
4. Sign in with your Microsoft account if asked, then follow the prompts to buy Windows 11 Pro.
5. When prompted, install the upgrade and restart.

The Store shows its price before you confirm. In the US it has been listed at $99 for the upgrade, compared with $199.99 for a full Windows 11 Pro licence from Microsoft. Microsoft's own Home to Pro upgrade guide covers both the key and Store routes.

Upgrade Key vs Full Pro Key: Which Should You Buy?

An upgrade key needs an activated Home installation to work on, while a full Pro key can also be used for a clean install of Pro. Choose based on whether you might reinstall from scratch.

Prices are at the time of writing. Because both single-PC options currently cost the same, a full Pro key gives you more flexibility for the same money. The licence type also matters if you might change hardware later; our explainer on Windows OEM vs retail licences covers transfer rights.

What Happens to My Files and Apps After the Upgrade?

Your files, installed apps and settings stay where they are after upgrading from Home to Pro. The edition changes in place, so documents, desktop shortcuts and programs remain untouched.

A few things do change. Pro features such as BitLocker, Remote Desktop and Hyper-V become available but stay off until you turn them on. If you were using Home's device encryption, it stays on, and you gain the fuller BitLocker controls that Pro adds. Your digital licence also updates to Pro, so if you sign in with a Microsoft account, the Pro licence is linked to that account for future reinstalls on the same PC.

A Common Mistake We See

The most common problem is trying the upgrade on a PC where Home is not activated, for example a computer where Windows was reinstalled and never activated. The upgrade then stalls or Windows reports an activation error after restarting. Activate Home first, or do a clean install using a full Pro key.

The second is entering the key during an upgrade with a pending Windows Update restart. Restart and finish updates before you begin. If a Pro key is still rejected, our guide to Windows activation errors explains the usual codes, and our support team can help with activation.

Frequently Asked Questions

How do I upgrade from Win 11 Home to Pro for free?

There is no free official upgrade from Windows 11 Home to Pro for a PC that only has a Home licence. You need either a Pro product key or a Microsoft Store purchase. The one free route is if you already own an unused Windows 10 Pro or Windows 11 Pro licence that you are allowed to use on this PC.

How long does it take to upgrade Windows 11 Home to Pro?

Most upgrades from Windows 11 Home to Pro finish in under 30 minutes, including one or more automatic restarts. The time depends on your drive speed and whether Windows needs to install pending updates first. A fast internet connection helps, because Windows checks the key with Microsoft's activation servers.

Will upgrading to Windows 11 Pro from Home delete my files?

No. Upgrading to Windows 11 Pro from Home is an in-place edition change that keeps your personal files, installed apps and settings. Nothing is wiped or reinstalled. As with any system change, backing up important files beforehand is still good practice in case of a power cut during the restart.

Can I use a Windows 10 Pro key to upgrade Windows 11 Home to Pro?

Yes. Windows 11 accepts Windows 10 Pro keys, so you can enter one on the Activation page to upgrade Windows 11 Home to Pro. The key must be genuine and not in use on another computer, and an OEM Windows 10 Pro key remains tied to the PC it was first activated on.

Why is the Change product key option not upgrading my PC?

The most common reasons are that Windows 11 Home is not activated, the PC is still in S mode, the key is for the wrong edition (such as Pro N on standard Home), or updates are waiting for a restart. Check each in Settings, restart, and enter the key again.

Can I go back from Windows 11 Pro to Home?

There is no simple in-place downgrade from Pro to Home. Returning to Home requires a clean install of Windows 11 Home, which means backing up your files and reinstalling apps. For most people there is no reason to go back, because Pro includes every Home feature.

Conclusion

Knowing how to upgrade from Windows 11 Home to Pro saves you a reinstall: activate Home, open Settings → System → Activation, enter a Pro key and restart. Your files and apps stay put, and the Pro tools are ready to switch on. For more options, including multi-PC licences, browse our Windows 11 collection.

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