The fastest way: Settings

Open Settings by pressing the Windows key and typing "settings", then press Enter. In the search box at the top, type "about your pc" and click the result. You will see your Windows version listed as "Edition" — it will say Windows 10, Windows 11, or Windows Server, followed by a number like 22H2.

This method takes 15 seconds and shows you everything you need: the edition name, the build number (the long number under "OS Build"), and the release date. If you are checking because you need to know whether your computer can run a specific program, this is the information that program's requirements will ask for.

Key Takeaways

  • Open Settings, search for "about your pc", and read the Edition line to see your Windows version in under 20 seconds.
  • The build number (the long number under OS Build) tells you exactly which update you have installed, which matters for some software and security patches.
  • If Settings does not open or looks broken, right-click the Start button and select "System" to reach the same information.
  • Windows 10 and Windows 11 are the two current versions; anything older than Windows 10 no longer receives security updates.

Using the Run command if Settings is slow

If Settings takes a long time to load on your computer, use the Run command instead. Press Windows key + R, type "winver" (without quotes), and press Enter. A small window will pop up showing your Windows version, edition, and build number in plain text.

This method is faster on older or slower computers because it does not load the full Settings app. The information is identical to what you would see in Settings — you are just getting it through a different door.

What the version numbers actually mean

Windows versions come in two parts: the main version (10 or 11) and the build number (a four or five-digit number like 22621). The build number changes every time Microsoft releases an update, usually monthly. If you see "22H2" or "23H2" next to your edition, that is shorthand for the year and half-year of the latest update — 22H2 means the second half of 2022.

When you are checking your version to see if your computer can run something, the main version (10 or 11) is usually what matters. When you are troubleshooting a problem or checking if you have a specific security patch, the build number is what you need. Write down both numbers if you are contacting support or looking up whether a bug has been fixed.

Checking your system type (32-bit or 64-bit)

In the same "About your PC" window, look for "System type". It will say either "64-bit operating system" or "32-bit operating system". Almost all modern computers run 64-bit, which can use more memory and run more modern software. If you see 32-bit, your computer is older and may not be able to run newer programs even if it has the right Windows version.

Some software requires 64-bit specifically. If you are trying to install something and it says "this program requires 64-bit Windows", you will need to either upgrade your Windows installation or use a different program. You cannot change a 32-bit Windows to 64-bit without reinstalling Windows completely.

What to do if you cannot open Settings

If clicking Settings does nothing or the app crashes, try the Run command method first (Windows key + R, then type "winver"). If that does not work, right-click the Start button in the bottom left corner and select "System" — this opens the same information window through a different route.

If none of these methods work, your Windows installation may be damaged. Try restarting your computer first — many temporary problems fix themselves. If the problem continues, you may need to repair or reinstall Windows, which is a larger task covered in separate guides.

Why you might need this information

Software companies list system requirements that include a minimum Windows version. Before you read a program, the company's website will say something like "requires Windows 10 build 19041 or later" or "Windows 11 only". Checking your version tells you whether your computer meets that requirement.

You also need this information when you contact Microsoft support, when you are troubleshooting a problem online, or when you are deciding whether to upgrade your computer. Knowing your exact build number helps support staff understand what updates you have and have not received.

Frequently Asked Questions

How do I know if my Windows version is up to date?

Open Settings, search for "update", and click "Check for updates". Windows will tell you whether updates are available and install them automatically if you let it. Your build number will increase after updates install. If you want to know whether you have the latest version, compare your build number to Microsoft's official list of current builds on their website.

Can I change my Windows version from 10 to 11?

Windows 11 is a free update if your computer meets the hardware requirements (mainly a compatible processor and TPM 2.0 chip). Check Settings to see if an update to Windows 11 is available. If nothing appears, your computer may not meet the requirements. You cannot downgrade from 11 back to 10 without reinstalling Windows.

What if my computer shows a version older than Windows 10?

Windows 7, 8, and 8.1 no longer receive security updates from Microsoft. If you are using one of these versions, your computer is at risk from viruses and hacking. You should upgrade to Windows 10 or 11 as soon as possible, either by purchasing a new computer or by reinstalling Windows on your current one.

Does the build number matter for running programs?

Most software only cares about the main version (10 or 11), not the build number. Some specialized programs, especially security software or development tools, may require a specific build or newer. Check the program's system requirements page to see if a build number is listed.