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Windows Keys
Buy a Windows key once and activate Windows without a subscription. Windows 11 is the current version, in Home and Pro editions. Windows 10 keys are still available for older PCs. For servers, see our Windows Server keys. Every key is delivered instantly by email with activation steps, and our support team helps on live chat and email.
Hot
Windows 11 Pro Key
23.99 €- Windows 11 Pro retail key for one PC. One-time purchase, no subscription.
- Activates online in Settings. Also upgrades Windows 11 Home to Pro without reinstalling.
- One-time activation: reinstall on the same PC as long as the hardware doesn’t change. It can’t be moved to another PC.
- Instant delivery by email, with the download link and our step-by-step activation guide.
- Email & live chat support 24/7. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Hot
Windows 11 Home Key
14.99 €- Windows 11 Home retail key for one PC. One-time purchase, no subscription.
- Activates online in Settings or during a clean installation.
- One-time activation: reinstall on the same PC as long as the hardware doesn’t change. It can’t be moved to another PC.
- Instant delivery by email, with the download link and our step-by-step activation guide.
- Email & live chat support 24/7. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Hot
Windows 10 Pro Key
14.99 €- Windows 10 Pro retail key for one PC. One-time purchase, no subscription.
- Activates online in Settings. Also upgrades Windows 10 Home to Pro without reinstalling.
- One-time activation: reinstall on the same PC as long as the hardware doesn’t change. It can’t be moved to another PC.
- Instant delivery by email, with the download link and our step-by-step activation guide.
- Email & live chat support 24/7. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows 10 Home Key
7.99 €- Windows 10 Home retail key for one PC. One-time purchase, no subscription.
- Activates online in Settings or during a clean installation.
- One-time activation: reinstall on the same PC as long as the hardware doesn’t change. It can’t be moved to another PC.
- Instant delivery by email, with the download link and our step-by-step activation guide.
- Email & live chat support 24/7. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
SQL Server 2019 Standard Key
55.99 €- SQL Server 2019 Standard product key for one server
- Enter it during setup, or upgrade an Evaluation or Developer installation without reinstalling
- Up to 24 cores or 4 sockets and 128 GB of buffer pool memory per instance
- Microsoft security updates until 8 January 2030
- Instant delivery by email. Key won’t work? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows 10 Pro 5-PC Key
39.99 €- One Windows 10 Pro retail key that activates five PCs. One-time purchase, no subscription.
- Activates online in Settings. Also upgrades Windows 10 Home to Pro on each PC.
- Each activation stays with the PC it was used on: reinstall that PC as long as the hardware doesn’t change. Activations can’t be moved to other PCs.
- Instant delivery by email, with the download link and our step-by-step activation guide.
- Email & live chat support 24/7. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows 11 Pro 5-PC Key
45.99 €- One Windows 11 Pro retail key that activates five PCs. One-time purchase, no subscription.
- Activates online in Settings. Also upgrades Windows 11 Home to Pro on each PC.
- Each activation stays with the PC it was used on: reinstall that PC as long as the hardware doesn’t change. Activations can’t be moved to other PCs.
- Instant delivery by email, with the download link and our step-by-step activation guide.
- Email & live chat support 24/7. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2012 R2 Datacenter Key
58.99 €- Windows Server 2012 R2 Datacenter retail key for one server, with unlimited Hyper-V virtual machines. One-time purchase.
- Activated online
- Instant delivery by email. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2012 R2 Essentials Key
42.50 €- Windows Server 2012 R2 Essentials retail key for one small-business server. One-time purchase.
- Up to 25 users and 50 devices, with no CALs needed
- Instant delivery by email. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2012 R2 Standard Key
39.99 €- Windows Server 2012 R2 Standard retail key for one server, with 2 Hyper-V virtual machines. One-time purchase.
- Activated online
- Instant delivery by email. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2016 Datacenter Key
44.88 €- Windows Server 2016 Datacenter retail key for one server with up to 16 cores. One-time purchase.
- Unlimited Hyper-V virtual machines, plus Storage Spaces Direct and Shielded VMs
- Activates online. Turns the free evaluation version into the full version without reinstalling.
- Instant delivery by email with install and activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2016 Essentials Key
29.99 €- Windows Server 2016 Essentials retail key for one small-business server. One-time purchase.
- Up to 25 users and 50 devices, with no client access licenses (CALs) needed
- Includes the Essentials Experience dashboard and client backup
- Instant delivery by email with activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2016 RDS CALs (50 Users)
43.15 €- 50 Remote Desktop Services user CALs for Windows Server 2016
- Lets 50 named users connect to your RD Session Host servers, from any device
- Installed on your RD License Server with Remote Desktop Licensing Manager
- Instant delivery by email with installation steps. Won’t install? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2016 Standard Key
35.00 €- Windows Server 2016 Standard retail key for one server with up to 16 cores. One-time purchase.
- Run 2 virtual machines with Hyper-V on the licensed server
- Activates online. Turns the free evaluation version into the full version without reinstalling.
- Instant delivery by email with install and activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2019 Datacenter Key
85.00 €- Windows Server 2019 Datacenter retail key for one server with up to 16 cores. One-time purchase.
- Unlimited Hyper-V virtual machines, plus Storage Spaces Direct and software-defined networking
- Activates online. Turns the free evaluation version into the full version without reinstalling.
- Microsoft security updates until 9 January 2029
- Instant delivery by email with install and activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2019 Essentials Key
26.99 €- Windows Server 2019 Essentials retail key for one small-business server. One-time purchase.
- Up to 25 users and 50 devices, with no client access licenses (CALs) needed
- For servers with up to 2 processors and 64 GB of RAM
- Microsoft security updates until 9 January 2029
- Instant delivery by email with activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2019 RDS CALs (50 Users)
79.99 €- 50 Remote Desktop Services user CALs for Windows Server 2019
- Lets 50 named users connect to your RD Session Host servers, from any device
- Installed on your RD License Server with Remote Desktop Licensing Manager
- Instant delivery by email with installation steps. Won’t install? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2019 Standard Key
29.99 €- Windows Server 2019 Standard retail key for one server with up to 16 cores. One-time purchase.
- Run 2 virtual machines with Hyper-V on the licensed server
- Activates online. Turns the free evaluation version into the full version without reinstalling.
- Microsoft security updates until 9 January 2029
- Instant delivery by email with install and activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2022 Datacenter Key
79.99 €- Windows Server 2022 Datacenter retail key for one server with up to 16 cores. One-time purchase.
- Unlimited Hyper-V virtual machines, plus Storage Spaces Direct and software-defined networking
- Activates online. Turns the free evaluation version into the full version without reinstalling.
- Microsoft security updates until 14 October 2031
- Instant delivery by email with install and activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2022 RDS CALs (50 Users)
117.00 €- 50 Remote Desktop Services user CALs for Windows Server 2022
- Lets 50 named users connect to your RD Session Host servers, from any device
- Installed on your RD License Server with Remote Desktop Licensing Manager
- Instant delivery by email with installation steps. Won’t install? Tell us within 15 days of your order and we fix it, replace it or refund you.
Hot
Windows Server 2022 Standard Key
39.00 €- Windows Server 2022 Standard retail key for one server with up to 16 cores. One-time purchase.
- Activates online. Turns the free evaluation version into the full version without reinstalling.
- Standard edition: run 2 virtual machines with Hyper-V on the licensed server.
- Microsoft security updates until 14 October 2031.
- Instant delivery by email with install and activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2025 Datacenter Key
82.99 €- Windows Server 2025 Datacenter retail key for one server with up to 16 cores. One-time purchase.
- Unlimited Hyper-V virtual machines, plus Storage Spaces Direct and software-defined networking.
- Activates online. Turns the free evaluation version into the full version without reinstalling.
- The newest Windows Server, with Microsoft security updates until 14 November 2034.
- Instant delivery by email with install and activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Windows Server 2025 Standard Key
52.99 €- Windows Server 2025 Standard retail key for one server with up to 16 cores. One-time purchase.
- Activates online. Turns the free evaluation version into the full version without reinstalling.
- Standard edition: run 2 virtual machines with Hyper-V on the licensed server.
- The newest Windows Server, with Microsoft security updates until 14 November 2034.
- Instant delivery by email with install and activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Sold out
Windows Server 2022 Essentials Key
30.00 €- Windows Server 2022 Essentials retail key for one small-business server. One-time purchase.
- Up to 25 users and 50 devices, with no client access licenses (CALs) needed
- For single-processor servers with up to 10 cores
- Microsoft security updates until 14 October 2031
- Instant delivery by email with activation steps. Key won’t activate? Tell us within 15 days of your order and we fix it, replace it or refund you.
Which Windows key do I need?
| Windows 11 Home | Windows 11 Pro | Windows 10 Home / Pro | |
|---|---|---|---|
| Best for | Personal PCs and laptops | Work, small business and power users | Older PCs that can't run Windows 11 |
| BitLocker, Remote Desktop host, Hyper-V | No | Yes | Pro only |
| Hardware needed | TPM 2.0, Secure Boot, supported 64-bit CPU | TPM 2.0, Secure Boot, supported 64-bit CPU | 1 GHz CPU, 2 GB RAM (64-bit) |
| Microsoft security updates | Yes | Yes | Ended 14 October 2025 |
| 5-PC key available | No | Yes | Pro only |
Home or Pro?
Windows Home has everything most people use: the desktop, Microsoft Edge, Microsoft Store, Windows Security and gaming features. Pro adds BitLocker drive encryption, Remote Desktop hosting, Hyper-V, Windows Sandbox, Group Policy and domain join. A Pro key also upgrades an existing Home installation to Pro, so you can start with Home and upgrade later.
About our Windows keys
- Retail keys, activated online. You enter the key in Settings and Windows activates with Microsoft.
- One PC per key, unless the product says 5 PCs. The activation stays with that PC: you can reinstall Windows on it as long as the hardware doesn't change, but you can't move the key to another computer.
- Each key fits one version and edition. Windows 11 keys activate Windows 11, Windows 10 keys activate Windows 10, and a Home key activates Home only.
- Genuine Microsoft licenses. We buy unused keys from companies that purchase Microsoft licenses in large batches, and pass the lower price on to you.
- Instant delivery by email and under My Account → Keys, with the download link and activation steps.
How to activate Windows
- Open Settings. On Windows 11, go to System > Activation. On Windows 10, go to Update & Security > Activation.
- Select Change product key and enter the 25-character key from your email.
- Windows activates online. With a Pro key on a Home PC, Windows upgrades to Pro and restarts; your files stay.
For a clean installation, download Windows from Microsoft with the Media Creation Tool and enter your key during setup. Each product page has the full steps.
Windows 10 end of support
Microsoft ended support for Windows 10 on 14 October 2025. Windows 10 still installs, activates and runs, but it gets no free security updates. If your PC meets the Windows 11 system requirements, choose a Windows 11 key.
If a key doesn't work
Contact us within 15 days of your order, on live chat or at support@cheapkeys.io. We'll help you activate it or replace the key, and if no working solution is possible, you get a refund under our refund policy.
Windows keys: FAQ
Is a Windows key a subscription?
No. You pay once and keep using Windows on that PC.
Can I upgrade Windows 11 Home to Pro?
Yes. Enter a Windows 11 Pro key in Settings > System > Activation > Change product key. Windows upgrades without reinstalling.
Does a Windows 10 key activate Windows 11?
No. Our Windows 10 keys are for Windows 10 and our Windows 11 keys are for Windows 11.
Can I move my Windows key to a new PC?
No. The key activates once, on one PC. You can reinstall Windows on that PC as long as the hardware doesn't change.
Where do I download Windows?
From Microsoft's website, with the free Media Creation Tool. The link is in your delivery email.
How fast will I get my key?
Instantly, by email and under My Account → Keys. In rare cases a system delay can add 5–10 minutes. If nothing arrives, check your spam folder or contact us on live chat.
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Windows 11 keys · Windows 10 keys · Windows Server keys · Windows 11 system requirements