Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

After you've selected it, you'll see the available links for that type of Surface device model. Select the link for your model to get the latest firmware and drivers for sound, display, ethernet, and Wi-Fi.

If you get an error code while downloading and installing Windows updates, the Update Troubleshooter can help resolve the problem. Select Start > Settings > System > Troubleshoot > Other troubleshooters. Next, under Most frequent, select Windows Update > Run.

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

If you need to reinstall Office, select the version you want to install and follow those steps: Microsoft 365, Office 2019, Office 2016, Office 2013, Office 2010, or Office 2007. How to uninstall Office automatically.

Give your PC a Fresh Start. Resetting your PC lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact. In some cases, a clean installation may improve your device's performance, security, browsing experience, and battery life.

To help with this, we are providing the PC Health Check app for Windows 10 PCs. In addition to diagnostic checks, there is a push-button simple way to check upgrade eligibility for Windows 11. Once Windows 11 is released, Windows Update will also offer a way to assess upgrade eligibility.

Ways to install Windows 11. Windows help & learning. Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.

The Link to Windows app is preinstalled on select Samsung, HONOR, Surface Duo, and OPPO devices that are running Android 9.0 or later. On such devices, you can find the Link to Windows app under the Quick Settings menu by swiping down from the top of your screen.