Which version of Windows operating system am I running?

Find operating system info in Windows 10

To find out which version of Windows your device is running, press the Windows logo key + R, type winver in the Open box, and then select OK.

Here’s how to learn more:

Select the Start button > Settings > System > About .

Under Device specifications > System type, see if you’re running a 32-bit or 64-bit version of Windows.

Under Windows specifications, check which edition and version of Windows your device is running.

Related links

If you’re having a problem with activation, see Activate in Windows 10.

If you forgot the password you use to sign in to Windows devices or email, see How to reset your Microsoft password.

For info about updating Windows, see Windows Update: FAQ.

Find operating system info in Windows 8.1 or Windows RT 8.1

To find out which version of Windows your device is running, press the Windows logo key + R, type winver in the Open box, and then select OK.

If your device is running Windows 8.1 or Windows RT 8.1, here’s how to learn more:

If you’re using a touch device, swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings. Continue to step 3.

If you’re using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, click Settings, and then click Change PC settings.

Select PC and devices > PC info.

Under Windows you’ll see which edition and version of Windows your device is running.

Under PC > System type you’ll see if you’re running a 32-bit or 64-bit version of Windows.

Related links

If you’re having a problem with activation, see Activate Windows 7 or Windows 8.1

If you forgot the password you use to sign in to Windows devices or email, see How to reset your Microsoft password.

For info about updating Windows, see Windows Update: FAQ.

Find operating system info in Windows 7

Select the Start button, type Computer in the search box, right-click on Computer, and then select Properties.

Under Windows edition, you’ll see the version and edition of Windows that your device is running.

Support for Windows 7 ended on January 14, 2020

We recommend you move to a Windows 10 PC to continue to receive security updates from Microsoft.

Related links

If you’re having a problem with activation, see Activate Windows 7 or Windows 8.1.

If you forgot the password you use to sign in to Windows devices or email, see How to reset your Microsoft password.

For info about updating Windows, see Windows Update: FAQ.

Operating System Version

The Version API Helper functions are used to determine the version of the operating system that is currently running. For more information, see Getting the System Version.

The following table summarizes the most recent operating system version numbers.

Operating system	Version number
Windows 10	10.0*
Windows Server 2019	10.0*
Windows Server 2016	10.0*
Windows 8.1	6.3*
Windows Server 2012 R2	6.3*
Windows 8	6.2
Windows Server 2012	6.2
Windows 7	6.1
Windows Server 2008 R2	6.1
Windows Server 2008	6.0
Windows Vista	6.0
Windows Server 2003 R2	5.2
Windows Server 2003	5.2
Windows XP 64-Bit Edition	5.2
Windows XP	5.1
Windows 2000	5.0

* For applications that have been manifested for Windows 8.1 or Windows 10. Applications not manifested for Windows 8.1 or Windows 10 will return the Windows 8 OS version value (6.2). To manifest your applications for Windows 8.1 or Windows 10, refer to Targeting your application for Windows.

Identifying the current operating system is usually not the best way to determine whether a particular operating system feature is present. This is because the operating system may have had new features added in a redistributable DLL. Rather than using the Version API Helper functions to determine the operating system platform or version number, test for the presence of the feature itself.

To determine the best way to test for a feature, refer to the documentation for the feature of interest. The following list discusses some common techniques for feature detection:

• You can test for the presence of the functions associated with a feature. To test for the presence of a function in a system DLL, call the LoadLibrary function to load the DLL. Then call the GetProcAddress function to determine whether the function of interest is present in the DLL. Use the pointer returned by GetProcAddress to call the function. Note that even if the function is present, it may be a stub that just returns an error code such as ERROR_CALL_NOT_IMPLEMENTED.
• You can determine the presence of some features by using the GetSystemMetrics function. For example, you can detect multiple display monitors by calling GetSystemMetrics(SM_CMONITORS).
• There are several versions of the redistributable DLLs that implement shell and common control features. For information about determining which versions are present on the system your application is running on, see the topic Shell and Common Controls Versions.

If you must require a particular operating system, be sure to use it as a minimum supported version, rather than design the test for the one operating system. This way, your detection code will continue to work on future versions of Windows.

Note that a 32-bit application can detect whether it is running under WOW64 by calling the IsWow64Process function. It can obtain additional processor information by calling the GetNativeSystemInfo function.

How to Find Windows 10 Computer Specifications & Systems Requirements

Here’s an overview of how to find computer specification requirements, versions, and languages available for Windows 10.

Table of Contents

System requirements for installing Windows 10

These are the basic requirements for installing Windows 10 on a PC. If your device does not meet these requirements, you may not have the great experience intended with Windows 10 and might want to consider purchasing a new PC.

RAM: 1 gigabyte (GB) for 32-bit or 2 GB for 64-bit

Hard drive size:

32GB or larger hard disk

Note: See below under “More information on hard drive space to install or update Windows 10” for more details.

Compatible with DirectX 9 or later with WDDM 1.0 driver

Display: 800×600 Internet Connection:

Internet connectivity is necessary to perform updates and to download and take advantage of some features. Windows 10 Pro in S mode, Windows 10 Pro Education in S mode, Windows 10 Education in S mode, and Windows 10 Enterprise in S mode require an internet connection during the initial device setup (Out of Box Experience or OOBE), as well as either a Microsoft account (MSA) or Azure Activity Directory (AAD) account. Switching a device out of Windows 10 in S mode also requires internet connectivity. Learn more about S mode here.

There may be additional requirements over time for updates, as well as requirements to turn on specific features within the OS.

Keeping Windows 10 up-to-date

Windows 10 is designed to deliver updates for the supported lifetime of the device. Two types of updates may be provided: quality updates and feature updates. Quality updates include both security and non-security updates and are typically targeted to be released once a month. Feature updates also include security and non-security fixes as well as new features to Windows 10 and are typically provided twice a year. Ensuring that your device receives these updates and is kept up-to-date is important for your device security. Windows 10 periodically checks for updates so you don’t have to. When an update is available—and sufficient free disk space is available on your device—it will be automatically installed. So that Windows 10 continues to stay updated, it’s important to ensure your device has sufficient free space. See additional applicable details in the following notes.

Important notes about updates:

• A device might not be able to receive updates if the device hardware is incompatible, if it lacks current drivers or sufficient available hard drive space, or if it’s otherwise outside of the Original Equipment Manufacturer’s (“OEM”) support period. Visit the Windows Lifecycle Fact Sheet or the Lifecycle FAQ for Windows products to learn more about the servicing timeline for each feature update.
  • Some of the disk space needed for installing updates is only temporarily required. Typically, ten days after installing an update, a disk cleanup will be automatically performed to delete copies of the older, unneeded Windows files and free up space again.
• Not all features in an update will work on all devices.
• An internet connection is required to perform updates and Internet access (ISP) fees might apply.
• If you need assistance installing an update, Windows 10 Update Assistant may be able to help.

More information on hard drive space requirements to install or update Windows 10

The size of the Windows operating system that comes with your device and the amount of space needed to download and install Windows updates, are highly variable as they depend on a variety of factors. Visit here to learn why. The factors that impact the amount of free hard drive space needed to take an update include: the versions of Windows previously installed on the machine, the amount of disk space available to reuse from Windows files, such as the virtual memory pagefile or hibernation file, which applications are installed on your device and how those applications store data. Starting with the May 2019 Update, the system requirements for hard drive size for clean installs of Windows 10 as well as new PCs changed to a minimum of 32GB. The 32GB or larger drive requirement is set to leave space for users to install apps and to keep data on the device. Installing Windows or updating from a previous version of Windows on devices with less than 32GB storage will continue to work if the device has enough free space available. When updating, Windows will attempt to automatically free up enough hard drive space and guide you through freeing up even more if the automatic cleanup is not sufficient. You can also take steps to free up space on your own. For more information, see Free up space to install the latest Windows 10 update or visit the related FAQ.

Feature-specific requirements for Windows 10

In addition to the requirements above that are needed to run Windows, some features have additional requirements. In some cases, features included with updated versions of Windows 10 will be best experienced with newer processors. For specific hardware support please refer to your Original Equipment Manufacturer (OEM). Below are some additional details regarding requirements for key features:

• BitLocker Drive Encryption (available with Windows 10 Pro or Windows 10 Enterprise only) requires a Trusted Platform Module (TPM) 1.2 or higher and Trusted Computing Group (TCG)-compliant BIOS or UEFI. BitLocker can be used on devices without TPM, but you will need to save a startup key on a removable device such as a USB flash drive. TPM 2.0 and InstantGo support is required when you want to automatically encrypt the local drive when joining a device to Azure Active Directory (AAD). Check with your PC manufacturer to confirm if your device supports the correct TPM version and InstantGo for the scenario you want to enable.
• BitLocker To Go requires a USB flash drive (available in Windows 10 Pro and Windows 10 Enterprise only).
• Client Hyper-V requires a 64-bit system with second level address translation (SLAT) capabilities and additional 2 GB of RAM (available in Windows 10 Pro and Windows 10 Enterprise only).
• Cortana is only currently available on Windows 10 for the United States, United Kingdom, China, France, Italy, Germany, Brazil, Mexico, Japan, Canada, Spain, Australia and India.
• Microsoft account is required for some features.
• Miracast requires a display adapter which supports Windows Display Driver Model (WDDM) 1.3, and a Wi-Fi adapter that supports Wi-Fi Direct.
• Movies & TV application is not available in all regions. For the most up-to-date list of regions, please go to the Movies & TV information page.
• Secure boot requires firmware that supports UEFI v2.3.1 Errata B and has the Microsoft Windows Certification Authority in the UEFI signature database.
• Skype is available only in select countries and regions. Calling to select countries and regions only. Excludes special, premium and non-geographic numbers. For details, visit the Office FAQ page.
• Snap: The number of applications that can be snapped will depend upon the minimum resolution for the application with a limit of two applications in Tablet mode and four applications in Desktop mode.
• Speech recognition will vary by device microphone. For a better speech experience, you will need a:
  • High fidelity microphone array
  • Hardware driver with microphone array geometry exposed
• Tablet mode is available on tablets and 2-in-1s with GPIO indicators or those that have a laptop and slate indicator will be able to be configured to enter «tablet mode» automatically.
• Touch: To use touch, you need a tablet or a monitor that supports multi-touch.
• Two-factor authentication requires the use of a PIN, Biometric (finger print reader or illuminated infrared camera), or a phone with Wi-Fi or Bluetooth capabilities.
• Windows Hello requires a camera configured for near infrared (IR) imaging or fingerprint reader for biometric authentication. Devices without biometric sensors can use Windows Hello with a PIN or a portable Microsoft compatible security key.
• Xbox application requires an Xbox Live account, which is not available in all regions. For the most up-to-date list of regions, please go to Xbox Live Countries and Regions website.
• Wi-Fi Direct Printing requires a Wi-Fi adapter that supports Wi-Fi Direct and a device that supports Wi-Fi Direct Printing.