Microsoft Windows 11 Pro Upgrade Key (2 PC)
- Key delivered by email right after payment
- Download link and activation guide included
- Secure checkout · digital product, nothing shipped
Windows 11 Pro is the business edition of Windows 11. It has everything in Windows 11 Home, plus BitLocker drive encryption, Remote Desktop hosting, Hyper-V virtual machines and the option to join a company domain. This upgrade key moves activated Windows 11 Home installations on up to 2 PCs to Pro, without reinstalling. You get the key by email after payment, with a download link and activation instructions.
- Upgrades 2 PCs from Windows 11 Home to Windows 11 Pro
- Requires an existing, activated Windows 11 Home installation; no reinstall needed
- Includes BitLocker, Remote Desktop host, Hyper-V and domain join
- Includes all display languages and the 64-bit edition
- Digital delivery: nothing is shipped
What does Windows 11 Pro add over Windows 11 Home?
Pro adds tools for security, remote work and IT management that Home doesn't have. If you only browse, stream and use Office, Home is usually enough. If you store client files, work remotely or run virtual machines, Pro is the edition built for that.
| Feature | Windows 11 Home | Windows 11 Pro |
|---|---|---|
| BitLocker drive encryption | No (device encryption only on some PCs) | Yes |
| Remote Desktop host (connect to this PC) | No | Yes |
| Hyper-V virtual machines | No | Yes |
| Windows Sandbox | No | Yes |
| Group Policy editor | No | Yes |
| Join a domain or Microsoft Entra ID (Azure AD) | No | Yes |
Why BitLocker matters on a laptop
BitLocker encrypts the whole drive, so a lost or stolen laptop doesn't hand over your files. Without the recovery key, the data can't be read even if the drive is taken out and put in another computer. Before you turn it on, save the recovery key to your Microsoft account or print it.
Remote Desktop and Hyper-V for working from anywhere
With Pro, you can connect to your office PC from another device using Remote Desktop. Hyper-V lets you run a separate Windows or Linux system in a window on the same PC, which is useful for testing software or keeping work and personal tools apart.
What do I need before using a Windows 11 Pro upgrade key?
You need a PC that already runs an activated copy of Windows 11 Home. The upgrade key changes the edition from Home to Pro in place, so your files, apps and settings stay where they are. It isn't meant for a blank PC or a fresh install. With this 2-PC version, each of the two PCs needs its own activated Home installation.
| Your PC today | Can you use this upgrade key? |
|---|---|
| Activated Windows 11 Home | Yes: upgrade it to Pro in Settings |
| Windows 11 Home, not activated | Activate Home first, or choose a full Pro key |
| Already Windows 11 Pro | Not needed: Pro is already installed |
| New PC with no Windows installed | No: you need a full Windows 11 Pro key |
Not sure which edition you have? Press Windows + R, type winver and press Enter. The window shows your Windows edition and version.
What are the system requirements for Windows 11 Pro?
Windows 11 Pro needs a compatible 64-bit processor, 4 GB of RAM, 64 GB of storage, UEFI with Secure Boot, and TPM 2.0. These are Microsoft's minimums, and the same rules apply to Windows 11 Home, Pro and Enterprise. Most PCs from the last few years meet them, but older machines often fail on the TPM 2.0 or processor check.
| Component | Minimum requirement |
|---|---|
| Processor | 1 GHz or faster, 2 or more cores, compatible 64-bit CPU or SoC |
| Memory (RAM) | 4 GB or more |
| Storage | 64 GB or more |
| System firmware | UEFI, Secure Boot capable |
| Security chip | TPM version 2.0 |
| Graphics | DirectX 12 compatible, WDDM 2.0 driver |
| Display | 720p (HD), larger than 9" diagonal |
| Internet | Needed for activation, updates and some features |
To check your own PC, run Microsoft's PC Health Check app or read the official Windows 11 requirements.
How do I activate Windows 11 Pro?
Make sure Windows 11 Home is installed and activated, then enter the upgrade key in Settings. Windows switches to Pro in place and restarts. You don't need to download or reinstall anything.
- Open Settings → System → Activation and check that Windows is activated.
- Select Change product key in the "Upgrade your edition of Windows" section.
- Enter the 25-character key from your order email and select Next.
- Confirm the upgrade and let the PC restart. It usually takes a few minutes.
- Go back to Activation and check that it shows Windows 11 Pro and says Windows is activated.
- For the second PC, repeat the same steps on its own activated Home installation.
A common issue we see is an upgrade key used on a PC where Home isn't activated yet, or on a fresh install with no Windows. Activate Home first: the upgrade key only works on top of it.
Frequently asked questions
Can I upgrade two PCs with this listing?
Yes. This version covers two PCs. Each one needs its own activated Windows 11 Home installation, and you enter the key details from your order email on each PC in turn. The upgrade on one PC does not affect the other.
Does upgrading to Pro keep my files and apps?
Yes. The upgrade changes the edition in place. Your files, installed apps and settings stay where they are, and you don't need to reinstall Windows. A backup before any system change is still a good habit.
Can I use the upgrade key on a new PC without Windows?
No. This key upgrades an existing, activated Windows 11 Home installation. For a PC with no Windows installed, or for a clean install, you need a full Windows 11 Pro key instead, which activates a fresh installation directly.
What if my Windows 11 Home isn't activated?
Activate Home first, using the key or digital licence that came with the PC. The upgrade key only works on top of an activated Home installation. If Home can't be activated, a full Pro key is the simpler option.
Looking for something else? Browse all Windows 11 keys, or save on a Windows + Office bundle.
