How to See What Windows You Have on Your PC
To find out which version and edition of Windows you have, open the Settings app and check the About page. There, you’ll see details like whether you’re running Windows 10 or 11, the edition (such as Home or Pro), and the exact version number. This quick check helps you understand your system better and decide if you need updates or software compatible with your setup.
How do I quickly check which Windows version I have?
Press Windows key + I and open System > About. Windows 10 has About in the System section's left menu; Windows 11 shows it further down the System page. Read Windows specifications for Edition, Version, and OS build, and Device specifications for System type. Alternatively, press Windows key + R, type winver, and press Enter. Start's location and the Settings layout differ between Windows 10 and 11.
What’s the exact build number and why should I care?
To see your Windows build number, type winver in the search box next to the Start button and press Enter. A small window will open showing your Windows version, edition, and the build number—a longer number after the version. The build number identifies the exact update level of your Windows installation. It’s important because different builds include specific security patches, bug fixes, and new features. Some software or drivers need a minimum build to run correctly. Knowing your build number helps you check if your system is up to date or if you need to install updates to support certain apps.
How can I tell if I’m running Windows 10, Windows 11, or an older version?
You can usually tell your Windows version by how it looks and the Start menu style. Windows 10 features a Start menu with tiles and a taskbar that spans the bottom with a search box next to the Start button. Windows 11 changes this by centering the Start menu and taskbar icons, using rounded window corners, and offering a cleaner design. Older versions like Windows 7 have a more traditional Start button on the left with classic menus and no tiles. For certainty, use the About page in Settings or the winver command to confirm your Windows version. Visual differences can help you guess, but system info gives a definite answer.
Is my Windows 32-bit or 64-bit, and why does that matter?
Open Settings > System > About and read System type. Note both the operating-system architecture and the processor architecture: x64 and Arm64 are both 64-bit but do not use the same native drivers. A 32-bit Windows installation needs compatible 32-bit applications and drivers, which are not necessarily old applications. Windows 11 has no 32-bit x86 edition, but it can run many 32-bit apps through compatibility support.
Are there command line ways to find Windows version details?
Run winver from Command Prompt, PowerShell, or the Run dialog to open the installed Windows system's version and build information. systeminfo provides a text report containing OS name and version plus hardware details. Its System Type entry describes the computer architecture, so do not use that field alone as proof of whether the installed OS is 32-bit or 64-bit. Read System type in Settings > System > About for that distinction. Commands run in a separate recovery environment may describe that environment instead of the installed system.
What should I do after finding out my Windows version?
On Windows 10, check Settings > Update & Security > Windows Update; on Windows 11, use Settings > Windows Update. Compare your exact release and edition with Microsoft's lifecycle information. Standard Windows 10 support ended on October 14, 2025; applicable ESU coverage is a separate matter. A Windows 11 release can also reach end of servicing even though newer Windows 11 releases remain supported. Check software and driver architecture as well as the product name before installing.
Conclusion
Start by opening Settings and viewing the About page to see your Windows version and edition—that’s the quickest and clearest way. Don’t worry too much about remembering build numbers, but keep your system updated to stay secure and running smoothly. If you want more details, commands like winver and systeminfo offer a deeper look without hassle. Once you have this information, focus on keeping your system updated and using software that matches your Windows version and system type to avoid compatibility issues and get the most from your PC.
Frequently Asked Questions
How can I quickly tell if I have Windows 10 or Windows 11?
Run winver or read the Edition entry in Settings > System > About. Visual appearance alone is not reliable because taskbar alignment and themes can be customized, including left-aligned icons on Windows 11.
Why do I need to know the build number of my Windows?
The build number shows the exact update version of Windows you’re running. It helps you know if your PC has the latest security patches and features, and whether certain software or drivers will work properly with your system.
Where do I find out if my Windows is 32-bit or 64-bit?
Go to Settings > System > About and look for System type. It will say either 32-bit or 64-bit operating system. This affects which programs and drivers you can install on your computer.
Can I check my Windows version using the command line?
Yes. winver opens the Windows version and build dialog, while systeminfo prints OS name, version, and other system details. For installed OS bitness, check System type in Settings > System > About rather than assuming systeminfo's hardware System Type field means the same thing.
What should I do if I find out my Windows version is very old?
If your Windows version is old, first check for updates. If updates aren’t available or your PC is no longer supported, consider upgrading to a newer Windows version to stay secure and compatible with current software.