Download drivers and firmware for Surface. Windows 11 Windows 10 Surface. Updates keep your Surface performing its best. Along with software updates for Windows 10 or Windows 11, it's important to make hardware updates, also known as updates for drivers and firmware.

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.

How to open PC Health Check. In Windows, use Search on the taskbar to search for “PC Health Check,” then select it from the list of results. If a PC Health Check update is available, you can quickly install it for the latest version.

The Microsoft Defender Offline scan will automatically detect and remove or quarantine malware. Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

Install Microsoft 365 2019 or 2016 on a PC. Remember a one-time purchase version of Microsoft 365 is licensed for one install only. Depending on your browser, select Open file (in Edge or Internet Explorer), Setup (in Chrome), or Save File (in Firefox).

On your PC, in the Phone Link, select Messages. To start a new conversation, select New message. Enter the name or phone number of a contact. Select the person you want to send a message to. A new message thread opens for you to begin with.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.

A Windows product key is a 25-character code used to activate Windows. It looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. Locate your product key for Windows 10 or Windows 11.

Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.

Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.