Reactivating Windows 10 after a hardware change

Activation helps verify that your copy of Windows is genuine and hasn’t been used on more devices than the Microsoft Software License Terms allow.

When installing Windows 10, the digital license associates itself with your device’s hardware. If you make significant hardware changes on your device, such as replacing your motherboard, Windows will no longer find a license that matches your device, and you’ll need to reactivate Windows to get it up and running.

To activate Windows, you’ll need either a digital license or a product key. To find out which you need, see «What activation method do I use, product key or digital license?» in Activate Windows 10. Then, use the following info to help you successfully prepare for a hardware change and reactivate Windows 10.

Prepare your Windows 10 device for a hardware change

First, follow these steps to find out if Windows 10 is already activated.

Select the Start button, then select Settings > Update & Security > Activation .

If you’re not activated, complete the activation process with the steps you see on the Activation page. If you experience an error while activating, see Get help with Windows activation errors.

Once you’ve confirmed that Windows 10 is activated, follow these steps:

In Windows 10 (version 1607 or later), it is essential that you link your Microsoft account with the Windows 10 digital license on your device. Linking your Microsoft account with your digital license allows you to reactivate Windows using the Activation troubleshooter whenever you make a significant hardware change.

First, you’ll need to find out if your Microsoft account (What is a Microsoft account?) is linked to your Windows 10 digital license. To find out, select the Start button, then select Settings > Update & Security and then select Activation . The activation status message will tell you if your account is linked.

Windows is activated with a digital license

This means that your Microsoft account is not linked to your digital license.

Follow instructions for Add an account.

Windows is activated with a digital license linked to your Microsoft account

This means that your Microsoft account is already linked to your digital license.

No further action is required. You are ready to use the activation troubleshooter.

If your Microsoft account is not linked to your digital license, follow these steps to Add an account:

Sign in as an administrator to add your Microsoft account. To confirm that you’re using an administrator account, select the Start button, then select Settings > Accounts > Your info . Under your name, you’ll see Administrator. If you’re not an administrator, see Create a local user or administrator account.
Go to Your info in Settings

Confirm that the administrator account is also your Microsoft account by checking to see if an email address is displayed above Administrator. If an email address is displayed, this is a Microsoft account. If not, you’re logged in using a local account. If you don’t yet have a Microsoft account, see How to create a new Microsoft account.

Once you confirm that you’re an administrator and using your Microsoft account, go back to the Activation page, select Add an account, enter your Microsoft account and password, then select Sign in.

After your Microsoft account has been added, the message on the Activation page will change to: Windows is activated with a digital license linked to your Microsoft account.

Make sure that the edition, Windows 10 Home or Windows 10 Pro, is the same before and after your hardware change. Your digital license and product key will reactivate only if the edition remains the same.

You can see your edition on the same Activation page where you checked your activation status. To see which edition you have, select the Start button, then select Settings > Update & Security > Activation .

If you used a product key to get to Windows 10, then you’ll need that key again after the hardware change. To find out how to locate your key, see Find your Windows product key.

For more info about product keys and digital licenses, see Activate Windows 10.

Reactivate Windows 10 after a hardware change

When you’re ready to reactivate, make sure that your device is connected to the internet and then follow the steps for either a digital license or product key.

You’ll need to first add your Microsoft account and link your account to the digital license on your device. After linking your Microsoft account, run the Activation troubleshooter to reactivate Windows 10.

This troubleshooter will only be available if your copy of Windows 10 (version 1607 or later) isn’t activated.

To use the Activation troubleshooter:

Select the Start button, then select Settings > Update & Security > Activation > Troubleshoot . The troubleshooter will show Windows can’t be activated on your device.

Select I changed hardware on this device recently, then select Next.

Enter your connected Microsoft account and password, then select Sign in. The troubleshooter will only work with the connected Microsoft account.

From the list of devices that are linked to your Microsoft account, select the check box next to This is the device I’m using right now.

If you don’t see the device you’re using in the list of results, make sure that you signed in using the same Microsoft account you associated with the Windows 10 digital license on your device.

If you continue to experience errors while activating, see Get help with Windows activation errors and locate the error you’re getting.

If you didn’t link your Microsoft account to the digital license before the hardware change AND you used a product key to upgrade to Windows 10, then continue to next section.

If Windows 10 wasn’t pre-installed on your device when purchased and you used a product key to upgrade to Windows 10, then you’ll need that same product key after the hardware change.

Select the Start button, then select Settings > Update & Security > Activation > Change Product Key, then enter the product key.

If you installed a retail copy of Windows 10 on your device using a Windows 10 product key and then made hardware changes, follow this same process using your Windows 10 product key.

If you continue to experience errors while activating, see Get help with Windows activation errors and locate the error you’re getting.

If you don’t have a digital license or product key

If you don’t have a product key or digital license, you can purchase a Windows 10 digital license after installation finishes. Follow these steps to make a purchase:

Select the Start button, then select Settings > Update & Security > Activation . Then select Go to Store to go to the Microsoft Store app where you can purchase a Windows 10 digital license.

Need more help?

If you need additional help reactivating Windows on your device, contact customer support.

Will Windows 10 Work on My Computer?

If your computer runs Windows 7, there’s a good chance it will also run Windows 10. Both operating systems have similar hardware requirements. Any new PC you buy or build will almost certainly run Windows 10, too.

You can still upgrade from Windows 7 to Windows 10 for free. If you’re on the fence, we recommend taking advantage of the offer before Microsoft stops supporting Windows 7.

Windows 10’s System Requirements Are (Almost) the Same As Windows 7’s

Here are Windows 10’s hardware requirements, straight from Microsoft:

• CPU: 1GHz or faster
• RAM: 1GB for 32-bit Windows or 2GB for 64-bit Windows
• Hard Disk: 32GB or larger
• Graphics Card: DirectX 9-compatible or newer with a WDDM 1.0 driver

Windows 7’s requirements from a decade earlier are the same, although Windows 10 needs a bit more hard disk space. Windows 7 needs 16GB of storage for 32-bit systems or 20GB for 64-bit systems. Windows 8’s system requirements are the same as Windows 7’s.

In other words, if your computer runs Windows 7 or 8 today, Windows 10 should run on it—assuming it doesn’t have a tiny hard drive.

To check how much internal storage your PC has on Windows 7, open Windows Explorer and look under Computer.

These Are Minimum System Requirements

To be clear, these are minimum requirements. We don’t recommend using Windows 10 on an underpowered PC that just meets this minimum bar, but we don’t recommend running Windows 7 on such a system, either.

For example, while 32GB is enough disk space to install the Windows 10 operating system, you’ll need more space to install programs and download files.

And, while a 1GHz CPU and 1GB of RAM can technically run the 32-bit version of Windows 10, modern programs and even modern websites may struggle to perform well. That’s true on Windows 7, too.

If your computer can run Windows 7 well, it can likely run Windows 10 well. If Windows 7 and your applications perform slowly on your system, expect the same from Windows 10.

Windows 10 May Even Be Faster Than Windows 7

It’s worth noting that Windows 10 may even be faster in some ways. For example, the latest versions of Windows 10 incorporate a better, faster solution to the Spectre flaw. If you have an older CPU, it will perform more slowly on Windows 7, which has a less sophisticated Spectre patch that slows down your system more.

Windows 10 also has a lot of under-the-hood work that’s taken place over a decade of development since Windows 7 was released. For example, Microsoft engineered Windows 8 to use less RAM than Windows 7. Fast Startup, enabled by default, can make your PC boot faster.

The core operating system may need more disk space, but it’s been streamlined. This isn’t another Windows Vista situation: Windows 10 was designed to perform well on computers that ran Windows 8, and Windows 8 was designed to perform well on PCs that run Windows 7.

You Can Still Upgrade to Windows 10 for Free

If you are using Windows 7, you can still upgrade to Windows 10 for free. All you need is a valid Windows 7 (or 8) key, and you can install a properly licensed, activated version of Windows 10.

We encourage you to take advantage of this before Microsoft ends support for Windows 7 on January 14, 2020. Upgrading to Windows 10 means your PC will continue getting security updates. Without upgrading, only businesses that pay for pricey support contracts can keep getting updates.

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.