Windows 11 comes pre-installed on most new computers, but you can also buy it separately if you need it

When you buy a new computer from a retailer or manufacturer, Windows 11 is usually already installed and activated. You pay for it as part of the total price—it is bundled into the cost. If your new computer does not have an operating system, or if you are building a computer from parts, you will need to purchase Windows 11 separately. You can buy it directly from Microsoft, from authorized retailers, or from third-party sellers online.

The price and the version you choose depend on what you plan to do with the computer. Microsoft offers Windows 11 Home (the standard version for personal use) and Windows 11 Pro (which includes extra security and business features). You also have the option to buy a license key alone, or to buy a physical copy that includes installation media.

Key Takeaways

  • Most new computers come with Windows 11 already installed and paid for, so you do not need to buy it separately.
  • If you need to buy Windows 11, you can purchase it from Microsoft's website, authorized retailers, or third-party online sellers.
  • Windows 11 Home is the standard version for personal computers; Windows 11 Pro adds security and remote access features for a higher price.
  • You can buy a license key alone (digital delivery) or a physical copy with installation media, depending on your needs.
  • Before you buy, confirm your computer meets the system requirements, including processor compatibility and TPM 2.0 support.

Where to buy Windows 11

The official source is the Microsoft Store at microsoft.com. You can purchase a digital license key there and receive it by email within minutes. This is the most straightforward route if you want to buy directly from Microsoft and avoid third-party sellers.

Authorized retailers include Best Buy, Amazon, Newegg, and Micro Center. These sellers offer both digital keys and physical copies (which include a USB drive or DVD with installation media). Prices are usually the same as the Microsoft Store, though retailers sometimes run sales or bundle Windows 11 with other products.

Third-party online marketplaces also sell Windows 11 keys, often at lower prices than official sources. Be cautious with these: confirm the seller has good reviews and that the key is legitimate before you buy. A key purchased from an unauthorized seller may not set up, or it may be revoked later.

Windows 11 Home versus Windows 11 Pro

Windows 11 Home is the standard version for personal computers. It includes all the core features: the Start menu, Taskbar, File Explorer, Windows Defender (antivirus), Windows Update, and access to the Microsoft Store. For most people—students, home users, casual gamers—Home is sufficient.

Windows 11 Pro adds features aimed at small businesses and power users. These include BitLocker (full-disk encryption), Remote Desktop (access your computer from another device), Hyper-V (virtual machine software), and Group Policy Editor (advanced system settings). Pro also allows you to delay Windows updates and to connect to a business domain. If you do not use these features, Pro is not necessary.

The price difference is significant. Home costs less than Pro. If you are unsure whether you need Pro, start with Home—you can upgrade to Pro later by purchasing an upgrade license.

How to check if your computer meets the requirements

Windows 11 has specific system requirements that your computer must meet. The most common issue is processor compatibility: Windows 11 requires an 8th-generation Intel processor or a Ryzen 2000-series AMD processor (or newer). If your computer is older, it may not be compatible.

Other requirements include at least 4 GB of RAM, 64 GB of storage space, a graphics card compatible with DirectX 9, and TPM 2.0 (a security chip). Most modern computers have these, but older or budget models sometimes do not.

To check your computer's specs, open Settings (press Windows key + I), go to System, and select About. You will see your processor, RAM, and storage. For TPM 2.0, search for "TPM" in Settings and look for "Trusted Platform Module 2.0" in the results. If you are unsure whether your processor is compatible, search the model number on Microsoft's official processor list.

Buying a digital license key versus a physical copy

A digital license key is a code you receive by email. You enter it into Windows during setup or afterward to set up your copy. Digital keys are delivered when ready, take up no physical space, and are cheaper because there is no packaging or shipping. This is the fastest option if you need Windows 11 right away.

A physical copy includes a USB drive or DVD with Windows 11 installation media, plus a license key in the box. Physical copies cost more because of packaging and shipping, but they are useful if you want to keep the installation media for future reinstalls or if you prefer not to read a large file. You can also create your own installation media for free using Microsoft's Media Creation Tool, so a physical copy is not necessary unless you want the convenience.

How to install Windows 11 after you buy it

If you bought a digital key, you will receive a code by email. During Windows setup (when you first turn on your new computer), you will be prompted to enter this key. If setup does not ask for it, you can enter the key later in Settings under System > set up.

If you bought a physical copy, insert the USB drive or DVD and restart your computer. The installation media will boot automatically, and you will follow the on-screen prompts to install Windows 11. You will be asked to enter your license key during this process.

If you are building a computer from parts and do not have an operating system yet, you will need to create installation media on another computer first. read the Media Creation Tool from Microsoft's website, run it on a working computer with a USB drive connected, and follow the prompts. Then use that USB drive to install Windows 11 on your new computer.

What to do if your computer does not meet the requirements

If your computer does not meet Windows 11's system requirements, you have two options: upgrade your hardware, or use an older version of Windows.

Upgrading usually means replacing the processor and motherboard, which is expensive and may not be worth it for an older computer. If you are considering this, compare the cost of the upgrade to the cost of a new computer.

Windows 10 is still supported by Microsoft and will receive updates until October 2025. If your computer runs Windows 10 well, you can continue using it. After October 2025, Windows 10 will no longer receive security updates, so you will need to upgrade your computer or switch to a different operating system.

Frequently Asked Questions

Do I have to buy Windows 11 if I already have a Windows 10 license?

No. Windows 10 is a separate product and will continue to work. However, Microsoft has ended free upgrades from Windows 10 to Windows 11. If you want to upgrade, you will need to purchase a Windows 11 license. You can continue using Windows 10 until October 2025, when support ends.

Can I use the same license key on more than one computer?

No. A single Windows 11 license is tied to one computer. If you need Windows 11 on multiple computers, you must purchase a separate license for each one. Using the same key on multiple computers violates Microsoft's terms of service.

What happens if I do not set up Windows 11?

Windows 11 will still work without set up, but you will see a watermark on your desktop and will not be able to customize certain settings. You can use it this way indefinitely, but Microsoft recommends activating to access all features. set up is free once you have a valid license key.

Is it cheaper to buy Windows 11 from a third-party seller?

Sometimes, but be careful. Third-party sellers occasionally offer keys at steep discounts, but these may be resold keys, keys from different regions, or keys that will be revoked. Stick with Microsoft, authorized retailers, or well-reviewed sellers on major platforms like Amazon. The small savings are not worth the risk of losing access to your operating system.