How to Find Your Windows 10 Build Number, Version, Edition and Bitness

The Build Number, Version, “Bit” ness (32-bit or 64-bit) of your Windows installation can be determined using many ways, and here are some of the methods listed.  Screenshots are from a Windows 10 PC, but most of the information applies to all versions of Windows.

Find Windows 10 Build Number, Version, Edition and Bitness

System Settings App

In Windows 10, use the System Settings app to find the OS information. Click Start, type About your PC. Click About your PC from the results.

System – Control Panel

Press Winkey + Pause-break keys. This opens Control Panel → All Control Panel Items → System.

The System applet shows all the info you need.

Using DirectX Diagnostic Tool

Run dxdiag.exe.


Using WMIC (WMI command-line tool)

Open a Command Prompt window and type:

wmic os get BuildNumber

The WMIC command-line (mentioning “OSArchitecture”) tells you the bitness of your Windows. You can get as many details as you need using WMIC OS Get command, such as:

wmic os get Caption, Version, BuildNumber, OSArchitecture

Hint: Here is a complete list of fields you can retrieve using WMIC OS Get (which uses the Win32_OperatingSystem class)

In addition to all of the above methods, if you check the Help → About page any Windows desktop application like Notepad, Wordpad, Internet Explorer or others, Windows version & build information is shown.

Note: The following methods don’t tell you whether you have an x64 version of Windows installed or not. They only show the OS installed and the System or Processor type (x86 or x64). System Type x64 means the processor is 64-bit but that does not necessarily mean you have Windows x64. It could be Windows x86 OS running on an x64 based machine.

System Information Utility

The System Information utility (MSInfo32.exe) has the details you need.

About Windows (WinVer)

Run winver.exe

Watermark on the Desktop

If you’ve added the PaintDesktopVersion or the DisplayVersion registry values as in article Display Build Info, Version and WinDir Path in the Desktop in Windows 8 an 10, you’ll see the Windows Edition, Build Information and WinDir path in desktop as watermark. For evaluation versions of Windows, the watermark displays by default.

Using SystemInfo.exe Command-line tool

Open a Command Prompt window and type in:


The SystemInfo command outputs more information that what you need. To get the OS Name and OS Version fields from the output, type this in the Command Prompt window:

systeminfo | findstr /b /c:"OS Name" /c:"OS Version"

The findstr command will parse the output and display only the two lines (OS name and version.)

RELATED: How to Find the Windows Installation Date and Time?

Windows 10 Build/Version Upgrade History

Did you know that Windows 10 keeps track of your every build/feature upgrade in the registry? Redditor u/sizzlr has found an interesting registry location and wrote a PowerShell script to unscramble the Windows 10 build installation dates from the registry.

Every time you install a feature update, Windows 10 creates a new subkey named “Source OS (Updated on )” and a bunch of values in the right pane. The registry key is located at:


Additionally, there are two values namely InstallTime and InstallDate which store the install date and time. The following PowerShell script gathers all the details for you and presents in a table:

$AllBuilds = $(gci "HKLM:\System\Setup" | ? {$_.Name -match "\\Source\s"}) | % { $_ | Select @{n="UpdateTime";e={if ($_.Name -match "Updated\son\s(\d{1,2}\/\d{1,2}\/\d{4}\s\d{2}:\d{2}:\d{2})\)$") {[dateTime]::Parse($Matches[1],([Globalization.CultureInfo]::CreateSpecificCulture('en-US')))}}}, @{n="ReleaseID";e={$_.GetValue("ReleaseID")}},@{n="Branch";e={$_.GetValue("BuildBranch")}},@{n="Build";e={$_.GetValue("CurrentBuild")}},@{n="ProductName";e={$_.GetValue("ProductName")}},@{n="InstallTime";e={[datetime]::FromFileTime($_.GetValue("InstallTime"))}} };

$AllBuilds | Sort UpdateTime | ft UpdateTime, ReleaseID, Branch, Build, ProductName

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About the author

Ramesh Srinivasan founded back in 2005. He is passionate about Microsoft technologies and has a vast experience in Windows — delivering support for Microsoft's consumer products. He has been a Microsoft MVP (2003-2012) who contributes to various Windows support forums.

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