Windows 11 Pro adds business and power-user features that Home doesn’t have: BitLocker drive encryption, Remote Desktop hosting, Hyper-V, Windows Sandbox, and Group Policy. You can upgrade in place without reinstalling or losing your files and apps, either by buying the upgrade from Microsoft or by entering a Pro product key you already own. This guide covers both methods, what you get, what it costs, and how to fix activation errors.
Quick Answer
Open Settings > System > Activation and expand Upgrade your edition of Windows. To buy Pro, click Open Store (or Upgrade) and complete the purchase. If you have a Pro key, click Change next to Change product key and enter it. Windows upgrades and restarts, and your files and apps stay in place.
Is Pro Worth It? What You Get
| Feature | Home | Pro |
|---|---|---|
| BitLocker full drive encryption (with management options) | Device encryption on supported hardware only | Yes |
| Remote Desktop (connect to this PC) | No (client only) | Yes |
| Hyper-V virtual machines | No | Yes |
| Windows Sandbox | No | Yes |
| Group Policy Editor (gpedit.msc) | No | Yes |
| Join a work domain / Entra ID management | Limited | Yes |
| Windows Update for Business controls | No | Yes |
If you don’t need these features, Home is enough for everyday use, gaming, and school.
Before You Upgrade
- Make sure Windows 11 Home is activated (Settings > System > Activation).
- Install pending updates and restart.
- Back up important files. The upgrade keeps them, but a backup is good practice.
- Sign in with an administrator account.
Method 1: Buy the Pro Upgrade from Microsoft
- Go to Settings > System > Activation.
- Expand Upgrade your edition of Windows and click Open Store (the label may say Upgrade).
- The Microsoft Store shows the Windows 11 Pro upgrade and its price in your region. Prices vary by region and change occasionally, so check the Store before you buy.
- Click Buy, sign in with your Microsoft account, and complete payment.
- Click Install and follow the prompts. The PC restarts, sometimes more than once.
The Pro license is tied to this PC as a digital license, and it’s linked to your Microsoft account if you’re signed in.
Method 2: Enter a Pro Product Key
- Go to Settings > System > Activation.
- Expand Upgrade your edition of Windows and click Change next to Change product key.
- Enter the 25-character Windows 10 or Windows 11 Pro key and click Next.
- Click Start to begin the upgrade. Save your work, because the PC restarts.
Buy keys only from Microsoft or authorized retailers. Very cheap “lifetime” keys from marketplaces are often resold volume keys that can stop working.
After the Upgrade
- Confirm the edition in Settings > System > About (Windows specifications should say Windows 11 Pro).
- Check Activation shows Active.
- Turn on the features you wanted, for example BitLocker (search Start for Manage BitLocker), Remote Desktop (Settings > System > Remote Desktop), or Hyper-V and Sandbox (Turn Windows features on or off).
Troubleshooting
Error 0xC004F050 or “The product key you entered didn’t work”
Check the key for typos, and make sure it’s a Pro key, not a Home or Enterprise key. Keys from volume licensing don’t upgrade retail Home installs.
The upgrade is stuck or fails
Run Windows Update, restart, and try again. Disconnect external drives and temporarily disable third-party antivirus.
Pro isn’t activated after changing hardware
Use Activation > Troubleshoot > I changed hardware on this device recently and sign in with the Microsoft account linked to the license.
Frequently Asked Questions
Will I lose my files or apps?
No. Upgrading from Home to Pro keeps your files, apps, and settings.
Can I use a Windows 10 Pro key?
Generally yes. Valid Windows 10 Pro keys usually upgrade Windows 11 Home to Pro.
Can I go back to Home later?
Not directly. Downgrading from Pro to Home requires a clean install of Home.
Summary
- Open Settings > System > Activation.
- Buy Pro from the Store, or choose Change product key and enter a Pro key.
- Restart when prompted. Your files stay in place.
- Confirm activation and turn on Pro features.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.