The fastest way to check your Windows version

Open the Settings app by pressing Windows key + I, then go to System in the left menu and select About. Your Windows version appears under "Edition" — you'll see Windows 10, Windows 11, or Windows Server with a year number. The build number sits below it under "OS Build".

If Settings doesn't open, right-click the Windows logo in the bottom left corner, select System, and scroll down to find the same information.

You can also press Windows key + Pause/Break to open System Properties directly, though this method is slower and less common on newer machines.

Key Takeaways

  • Settings > System > About shows your Windows edition and build number in under 10 seconds.
  • The build number changes with each update, while the edition (Windows 10 or 11) stays the same unless you upgrade the operating system itself.
  • The "OS Build" field tells you exactly which monthly update you have installed, which matters for security patches and bug fixes.
  • If you see a version number like 22H2 or 21H2, that's the release version — different from the build number but useful for knowing how current your system is.

What the version numbers actually mean

Windows has three layers of version information, and they mean different things. The edition — Windows 10 Home, Windows 10 Pro, Windows 11 Home, or Windows 11 Pro — tells you which product you own. This doesn't change unless you buy an upgrade.

The release version (like 22H2 or 21H2) indicates which major update cycle you're on. Windows releases two major updates per year, labeled with the year and H1 or H2 for the half. A version number like 22H2 means the second half of 2022. This changes when Microsoft pushes a major update, usually in spring and fall.

The OS Build number is the most specific. It changes with every monthly security update. Build 22621.1413 is different from 22621.1412 — the last digits shift with each patch Tuesday update. This is what you check when troubleshooting a specific problem or confirming you have the latest security fixes.

Using the command line to check your version

If you prefer typing commands, press Windows key + R, type winver, and press Enter. A window pops up showing your edition, version, and build number in one place. This is faster than navigating Settings if you just need a quick look.

For more detail, open Command Prompt or PowerShell and type systeminfo, then press Enter. Scroll down to find "OS Name" (your edition), "OS Version" (your build), and "System Boot Time" (when your computer last restarted). This method gives you extra information like your system manufacturer and processor, which can be useful for support tickets.

Why your build number matters for updates

Your build number tells you whether you have the latest security patches. Microsoft releases updates on the second Tuesday of each month, called Patch Tuesday. If your build number is several weeks old, you may be missing security fixes for recently discovered vulnerabilities.

You can check for updates manually by going to Settings > System > Windows Update and clicking Check for updates. Windows will download and install any available patches. After installation, your build number will increase, confirming the update worked.

Some organizations and workplaces delay updates on purpose, so your build number might be intentionally older. If you work in IT or for a large company, ask your support team before updating, since they may have tested a specific build for compatibility with your work software.

Checking version on older Windows systems

If you're running Windows 7, Windows 8, or an older version of Windows 10, the Settings app may look different. Right-click This PC or My Computer on your desktop, select Properties, and look for "System" information. You'll see your edition and a version number, though the format differs from newer Windows 11 systems.

For Windows 7 and 8, the build number appears as "Build" in the System Properties window. These older versions don't receive monthly updates the same way Windows 10 and 11 do, so the build number changes less frequently. If you're running Windows 7 or 8, Microsoft no longer provides security updates, so upgrading to Windows 10 or 11 is worth considering.

What to do if you can't find your version information

If Settings won't open or System Properties doesn't appear, your Windows installation may be corrupted. Try restarting your computer first — sometimes the Settings app needs a fresh start to work properly.

If restarting doesn't help, try the winver command again. Press Windows key + R, type winver, and press Enter. If that window opens, you have your version information even if Settings is broken.

If neither method works, you may need to repair Windows using the installation media or contact your IT support team. For home users, running Windows Update from the Control Panel (in older systems) or restarting in Safe Mode can sometimes fix Settings app problems.

Frequently Asked Questions

Is my Windows version the same as my build number?

No. Your version (like Windows 11 or 22H2) changes a few times per year with major updates. Your build number changes monthly with security patches. The build is more specific — it tells you exactly which update you have installed.

Do I need to know my build number to get support?

Yes. When you contact Microsoft support or your IT department, they'll ask for your build number first. It tells them exactly which updates you have and which bugs or security fixes apply to your system. You can find it in Settings > System > About under "OS Build".

What if my build number is very old?

Go to Settings > System > Windows Update and click "Check for updates". Windows will download and install any missing patches. After installation completes and you restart, your build number will increase. If updates won't install, restart your computer and try again.

Can I downgrade to an older Windows version?

You can roll back to a previous build within 10 days of updating by going to Settings > System > Recovery and selecting "Go back". After 10 days, you'd need to reinstall Windows using installation media, which erases your files. Most people keep their current version instead.

Why does my version number have letters like H1 or H2?

H1 means the first half of the year (spring update), and H2 means the second half (fall update). So 23H2 is the fall 2023 update. This helps you know roughly when your version was released and how current it is compared to the latest available update.