How much is a Windows 11 key? The answer ranges from about $10 to $200 depending on where you buy, which edition you choose and what type of licence it is. This guide explains the real price differences between Retail, OEM and upgrade licences, which edition you actually need, and how to avoid keys that stop working after a few weeks.
Official Microsoft price
In the United States, Microsoft sells Windows 11 at roughly $139 for Home and $199.99 for Pro, and an upgrade from Home to Pro costs about $99 inside the Settings app. Prices differ by country, so check the official Microsoft Store for your region. These are full Retail licences sold directly by Microsoft.
Why some Windows 11 keys are much cheaper
| Licence type | Typical price | Can move to a new PC? | Good for |
|---|---|---|---|
| Retail | Highest | Yes, one PC at a time | People who upgrade hardware often |
| OEM | Much lower | No, stays with the first PC | A new build or a PC you will keep |
| Volume / MAK | Very low on resale sites | Not meant for home users | Companies only – often blocked later |
OEM keys are the reason most online stores can sell Windows 11 far below the Microsoft price. They activate exactly the same Windows 11, with the same features and updates. The main difference is that the licence is tied to the first computer you activate it on.
Home or Pro: which one do you need?
| Feature | Windows 11 Home | Windows 11 Pro |
|---|---|---|
| Gaming, Office, browsing | Yes | Yes |
| BitLocker drive encryption | Device encryption only (on supported PCs) | Full BitLocker |
| Remote Desktop host | No | Yes |
| Hyper-V and Windows Sandbox | No | Yes |
| Join a company domain / Group Policy | No | Yes |
For gaming and everyday use, Home is enough. Choose Pro if you work remotely, run virtual machines or need BitLocker. A Pro key also upgrades an activated Home installation without reinstalling: go to Settings > System > Activation > Change product key.
Red flags when buying a cheap Windows 11 key
- Prices under a few dollars – usually leaked volume keys that get blocked.
- “Activate by phone” instructions – often a sign the key was already used.
- A downloaded “activator” instead of a key – not a licence, and a common way to spread malware.
- No refund or replacement policy – a real seller replaces a key that does not activate.
- No secure payment – pay by card or PayPal so you are protected if something goes wrong.
Do you need to buy a key at all?
- You already have Windows 10 activated – compatible PCs could upgrade to Windows 11 at no cost, and your existing licence carries over.
- You are reinstalling the same PC – a digital license usually reactivates by itself. See how to find your Windows 11 product key.
- New self-built PC or “Windows is not activated” – yes, you need a key.
Buy Windows 11 at G2U
We sell genuine Windows 11 Home and Windows 11 Pro keys with instant email delivery, secure checkout by card or PayPal, and step-by-step activation help. If a key does not activate, contact us and we will check it and replace it.
FAQ
Is a cheap OEM key legal?
OEM licences are genuine Microsoft licences. Microsoft’s terms intend them for new PCs and system builders, and they cannot be moved to another computer. Rules on reselling licences differ by country.
Does a Windows 11 key expire?
No. Windows 11 Home and Pro keys are lifetime licences for the PC they activate. Only subscriptions such as Microsoft 365 renew yearly.
Can I use one key on two PCs?
No. Each Windows 11 key activates one PC at a time.