The Windows 11 Pro price from Microsoft is $199.99 in the US Microsoft Store and £219.99 in the UK Store at the time of writing (November 2026). Key resellers sell OEM and retail Pro keys for considerably less. What decides whether a cheaper key is a good buy is the licence type and the seller, not the number on the label.
| Where you buy | What you get | Price guide (November 2026) | Main trade-off |
|---|---|---|---|
| Microsoft Store, full licence | Windows 11 Pro download or USB, retail licence | US $199.99 · UK £219.99 | Highest price, simplest paper trail |
| Microsoft Store, Home to Pro upgrade | Edition upgrade bought inside Settings | Shown in your Store app | Needs an activated Windows 11 Home |
| Pre-installed on a new PC (OEM) | Pro licence bundled with the hardware | Built into the PC price | Tied to that PC for life |
| Key reseller | Retail or OEM product key by email | Varies by seller and key type | You must check the seller and licence type |
Microsoft's list prices come from its US Windows 11 Pro store page and UK store page. For comparison, Windows 11 Home lists at $139 in the US and £119.99 in the UK.
How much is Windows 11 Pro in 2026?
Buying directly from Microsoft, Windows 11 Pro costs $199.99 in the United States and £219.99 in the United Kingdom as a download, with other regions priced in local currency. That buys a full retail licence. Reseller keys usually cost less, and a Home-to-Pro upgrade is cheaper than a full licence.
Microsoft's own price has stayed fixed for long periods, while reseller prices move with promotions and supply. Seasonal sales, especially around Black Friday, are when reseller prices tend to dip; our Black Friday 2026 software deals guide explains what to check before buying during a sale.
Why are Windows 11 Pro keys from resellers cheaper?
Reseller keys are cheaper mainly because of the licence channel. OEM keys are intended for system builders and cost less than retail boxes, resellers buy in volume and operate on thin margins, and digital delivery removes packaging and shelf costs. Some very cheap keys come from sources that breach Microsoft's distribution terms.
Not every low price is a warning sign, but the reason for the discount matters. A key sold as OEM should say so, and a key sold as retail should be transferable. Our OEM vs retail vs volume licence explainer sets out what each channel permits.
Cause and effect: keys taken from volume-licensing agreements or from another region's education programme can activate at first and then be blocked later when Microsoft revokes them. The saving disappears the day the PC shows "Windows is not activated" and you have nowhere to claim a replacement.
Is it legal to buy a cheap Windows 11 Pro key?
In many countries, buying a genuine product key from a reseller is legal, and in the EU courts have upheld the resale of software licences under certain conditions. The rules differ by region, though, and Microsoft's licence terms restrict how some key types may be distributed, so legality depends on where the key came from.
The practical test is whether the key is a genuine, unused licence of the type described. Keys that are shared between many buyers, taken from volume agreements or pulled from education subscriptions are where buyers run into trouble. Our full article on whether it is legal to buy cheap Windows and Office keys explains the regional differences in more detail.
What is the difference between an OEM and a retail Windows 11 Pro key?
An OEM key is tied to the first PC it activates and cannot normally be moved to another computer, while a retail key can be transferred to a new PC once you remove it from the old one. Both install the same Windows 11 Pro, receive the same updates and unlock identical features.
- OEM: lower price, best for a new build or a PC you plan to keep until it is retired.
- Retail: higher price, best if you upgrade hardware often or want to move the licence later.
- Volume (MAK/KMS): intended for organisations under a volume agreement, not for single consumer purchases.
LicenceHouse sells both a standard Windows 11 Pro key and a Windows 11 Pro OEM key; check the current price and licence type on each product page. If you expect to replace the PC within a few years, the retail key is usually the better value even at a higher price, because the licence moves with you instead of being written off with the old hardware.
Is upgrading from Home to Pro cheaper than buying Pro outright?
Usually, yes. If your PC already runs an activated copy of Windows 11 Home, an upgrade costs less than a full Pro licence, because it builds on the Home licence you already own. You can buy it through Settings > System > Activation > Upgrade your edition of Windows or enter a Pro upgrade key there instead.
- Open Settings > System > Activation and confirm Windows 11 Home shows as activated.
- Expand Upgrade your edition of Windows.
- To buy from Microsoft, select Open Store next to Upgrade in the Microsoft app; to use a key, select Change next to Change product key.
- Enter the 25-character key, select Next, and let Windows restart into Pro.
Microsoft documents both routes on its upgrade Windows Home to Pro page. An upgrade key from Windows 11 Home to Pro follows the same steps. Your apps, files and settings stay in place, and the switch normally completes after one restart.
Is Windows 11 Pro worth the extra cost over Home?
Windows 11 Pro is worth the extra cost if you need BitLocker drive encryption, Remote Desktop hosting, Hyper-V virtual machines, Group Policy, Windows Sandbox or business management tools such as domain join and Intune. For browsing, gaming, streaming and Office work, Home does the same job for less money.
Our Windows 11 Pro vs Home comparison lists every feature difference, so this article does not repeat the full table. The short version: Pro is about control, security and remote access rather than speed.
What we commonly see: buyers who pick Home to save money often come back for the upgrade within a year, usually because they want to connect to the PC remotely or encrypt a laptop for work. If either is likely, buying Pro from the start avoids a second purchase.
How can I tell a Windows 11 Pro key is genuine before I buy?
You cannot verify a key before activation, so judge the seller instead. A trustworthy seller names the licence type, shows a real business address and contact details, offers support and a replacement or refund if activation fails, and never asks you to run activator scripts or install a "pre-activated" ISO.
- Check that the product page states retail or OEM, not just "lifetime" or "global".
- Look for a clear refund or replacement policy for keys that fail to activate.
- Avoid listings that send a key with instructions to change system files or use command-line activators.
- Download Windows only from Microsoft, never from a link supplied with the key.
Pre-activated or modified Windows downloads are a security risk in their own right, because you cannot tell what else has been changed in the image. A genuine key works with the unmodified installer from Microsoft, so there is never a reason to accept a download link from the seller.
How do I activate Windows 11 Pro after buying a key?
Enter the 25-character key in Settings > System > Activation > Change product key, or type it during Windows setup when asked. Windows contacts Microsoft's activation servers and, once accepted, shows "Windows is activated" with a digital licence. Linking a Microsoft account makes reactivation easier after hardware changes.
Microsoft's Activate Windows support page covers each activation status and what to do after a motherboard replacement. For a full walkthrough from download to activation, see our Windows 11 Pro download, install and activation guide.
Frequently asked questions
How much does Windows 11 Pro cost from Microsoft?
At the time of writing (November 2026), Microsoft lists Windows 11 Pro at $199.99 in its US Store and £219.99 in its UK Store, as a download or USB. Prices in other countries are set in local currency and include local taxes, so check the Microsoft Store for your region before comparing.
Is a $20 Windows 11 Pro key real?
It can be a genuine key that activates, but very low prices usually mean an OEM key or a key from a source Microsoft does not authorise for resale. The risk is later deactivation with no replacement. Buy only from sellers that state the licence type and offer a written replacement or refund policy.
Does Windows 11 Pro need a subscription?
No. Windows 11 Pro is a one-time purchase. Once activated, it receives feature and security updates for the supported life of each Windows 11 version without any recurring fee. Only business add-ons such as Windows Enterprise subscriptions or Microsoft 365 plans involve monthly or annual payments.
Can I use one Windows 11 Pro key on two PCs?
No. A standard Windows 11 Pro licence covers one device at a time. You can move a retail licence to a new PC after removing it from the old one, but you cannot run both simultaneously. Businesses that need several PCs should buy one licence per device or ask about volume options.
Is Windows 11 Pro cheaper on Black Friday?
Microsoft rarely discounts Windows itself, but resellers often run promotions around Black Friday, which falls on 27 November 2026, and Cyber Monday on 30 November. Compare licence type and seller policies rather than headline price alone, because a deeper discount sometimes signals a weaker licence.
Related guides
- Windows 11 Pro vs Home: differences explained
- OEM vs retail vs volume licence keys
- Is it legal to buy cheap Windows keys?
- Windows 11 24H2 end of support: move to 26H2
Links in this guide
| Link | Type | Why it helps |
|---|---|---|
| Microsoft Store: Windows 11 Pro (US) | External | Official US list price |
| Microsoft Store: Windows 11 Pro (UK) | External | Official UK list price |
| Black Friday 2026 software deals | Internal | What to check before buying in a sale |
| OEM vs retail vs volume licence | Internal | Explains why key prices differ |
| Is it legal to buy cheap keys? | Internal | Regional legality of key resale |
| Windows 11 Pro key | Internal | Main Windows 11 Pro product |
| Windows 11 Pro OEM key | Internal | OEM option for a single PC |
| Upgrade Windows Home to Pro | External | Microsoft's steps for the edition upgrade |
| Upgrade Windows 11 Home to Pro | Internal | Cheaper route for activated Home PCs |
| Windows 11 Pro vs Home | Internal | Full feature comparison |
| Activate Windows | External | Microsoft's guide to activation status and reactivation |
| Windows 11 Pro install and activation | Internal | Complete setup walkthrough |
| Windows 11 24H2 end of support | Internal | Make sure your Pro PC is on a supported version |