Cast to a display from a Windows PC. You can wirelessly connect your PC to a TV, projector, or other kind of external display that supports Miracast. Turn on your TV, projector, or other display. If you're using a Miracast dongle or adapter, make sure it's plugged in to the display.

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

Installation media, such as a USB flash drive, can be used to install a new copy of Windows, perform a clean installation of Windows, or reinstall Windows. To create installation media, go to the software download website, where step-by-step instructions can be found.

Here's some of the things you can do in the PC Health Check app in Windows: If you’re currently running Windows 10, PC Health Check provides a comprehensive eligibility check for your device to ensure it meets the Windows 11 minimum system requirements.

Chat or receive a call back from a technical support expert: If you have a Microsoft 365 Basic, Microsoft 365 Personal, or Microsoft 365 Family subscription, get questions answered from anywhere via chat or request to receive a call back from one of our technical support experts.

If you're looking for product keys for Office, apps, games, and more, see Find your Microsoft downloads and product keys. Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.

A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This key, which is a 48-digit number, is used to regain access to the drive. You might be prompted for the BitLocker recovery key during startup, due to a security risk or hardware change:

Find answers to top questions about upgrading to Windows 11, from the minimum hardware requirements to where to find the upgrade.

Decide which device to use to run Windows 11. Windows 11 can run on PCs that meet the minimum hardware requirements. It might come pre-installed on new PCs, or you might be able to upgrade PCs currently running Windows 10. Note: Some Windows 10 features aren't available in Windows 11.