Microsoft Windows 10 Professional Key (20 PC)
- Key delivered by email right after payment
- Download link and activation guide included
- Secure checkout · digital product, nothing shipped
Windows 10 Pro is the business edition of Windows 10. It has everything in Windows 10 Home, plus BitLocker drive encryption, Remote Desktop hosting, Hyper-V virtual machines and the option to join a company domain. This listing covers 20 PCs, so you can activate Windows 10 Pro on 20 computers with a single order. You get the key by email after payment, with a download link and activation instructions.
- Activates 20 PCs: one order covers Windows 10 Pro on 20 computers
- Licence details for all 20 PCs arrive in one order email
- Supports all display languages; 32-bit and 64-bit versions
- Windows 10 support ended on 14 October 2025 (details below)
- Digital delivery: nothing is shipped
What does Windows 10 Pro add over Windows 10 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 10 Home | Windows 10 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.
How do I use this licence on 20 PCs?
This listing licenses Windows 10 Pro on 20 PCs. You activate each computer with the key details from your order email, one PC at a time, until all 20 are covered. If the email gives a separate key for each PC, use each key on one PC only.
Keep a simple list of which PC used which activation. A common issue we see is a pack used on more machines than it covers: once all 20 activations are used, the next PC will fail to activate. With 20 PCs, it pays to prepare all machines first and then activate them in one pass, checking each one under Activation before moving on.
Is Windows 10 still supported?
No. Microsoft ended support for Windows 10 Home and Pro on 14 October 2025. Windows 10 still installs, activates and runs, but it no longer receives regular security updates, feature updates or technical help from Microsoft.
Microsoft runs an Extended Security Updates (ESU) programme for Windows 10, version 22H2. Home and Pro users can enrol through Windows Update and keep getting security updates until 12 October 2027, and organisations can buy ESU for up to three years after end of support. See Microsoft's Windows 10 end of support page for the current terms.
Windows 10 still makes sense for PCs that can't run Windows 11, or for software that only supports Windows 10. For any PC that meets the Windows 11 requirements, a Windows 11 key is the better long-term choice.
What are the system requirements for Windows 10 Pro?
Windows 10 Pro runs on almost any PC from the last decade. Microsoft's minimum is a 1 GHz processor, 1 GB of RAM for 32-bit or 2 GB for 64-bit, and 32 GB of storage. Unlike Windows 11, it doesn't require TPM 2.0 or a recent processor, which makes it practical for older hardware.
| Component | Minimum requirement |
|---|---|
| Processor | 1 GHz or faster processor or SoC |
| Memory (RAM) | 1 GB (32-bit) or 2 GB (64-bit) |
| Storage | 32 GB or more |
| Graphics | DirectX 9 or later with WDDM 1.0 driver |
| Display | 800 × 600 |
| Internet | Needed for activation and updates |
See Microsoft's Windows 10 system requirements.
How do I activate Windows 10 Pro?
If Windows 10 is already installed, you enter the key in Settings. For a new PC or a fresh start, install Windows 10 first using Microsoft's official media from the download link in your email, then enter the key.
- Open Settings → Update & Security → Activation.
- Select Change product key.
- Enter the 25-character key from your order email and select Next.
- If you're upgrading from Home, let the PC restart. The upgrade usually takes a few minutes.
- Go back to Activation and check that it says Windows is activated.
- Repeat these steps on each PC, up to 20 in total.
Admins can also activate from an elevated Command Prompt with slmgr /ipk YOUR-PRODUCT-KEY followed by slmgr /ato, which makes larger rollouts easy to script.
A common issue we see is a key entered on the wrong edition. A Pro key won't activate Windows 10 Home directly. Use "Change product key" as above so Windows upgrades to Pro first.
Frequently asked questions
Can I use the same key on all 20 PCs?
Follow your order email. If it gives one key for 20 activations, enter that key on each PC until all 20 are used. If it lists separate keys, use one key per PC. Either way, the licence covers 20 PCs in total.
Can I upgrade from Windows 10 Home to Pro with this key?
Yes. Enter the key under Settings → Update & Security → Activation → Change product key. Windows upgrades to Pro in place, and your files, apps and settings stay where they are. You don't need to reinstall or download anything else.
Will Windows 10 keep working after end of support?
Yes. Windows 10 keeps running and can still be activated with this key. What stops is regular security updates and support from Microsoft, so the PC becomes more exposed over time unless it is enrolled in Extended Security Updates.
What if I need more than 20 PCs later?
Buy an additional licence for each extra PC. Once all 20 activations in this pack are used, further PCs need their own licence. For a growing fleet, it helps to keep a record of which PC used which activation.
Browse all Windows 10 keys, or get Windows and Office together in a Windows + Office bundle.
