Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Use System restore to make restore points when you install a new app, driver, or Windows update, and when you create a restore point manually.

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

For keyboard shortcuts in which you press one key immediately followed by another key, the keys to press are separated by a comma (,). For example, for è you would press Ctrl + `, release and then type e.

Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

Turn your PC off completely. To shut down, select Start and then select Power > Shut down.. Sleep. Sleep uses very little power, your PC starts up faster, and you’re instantly back to where you left off.

Argument name. Description. range (required). The group of cells you want to count. Range can contain numbers, arrays, a named range, or references that contain numbers. Blank and text values are ignored. Learn how to select ranges in a worksheet.. criteria (required). A number, expression, cell reference, or text string that determines which cells will be counted.

Surface model. Link. Surface Pro X. Use Windows Update to keep your Surface Pro X drivers and firmware up to date. Select Start > Settings > Update & Security > Windows Update .Commercial customers can learn more about servicing Pro X at Deploying, managing, and servicing Surface Pro X.. Surface Pro (11th Edition)

In Sound settings, go to Input to see your connected microphones. If it's a Bluetooth microphone, select Add device.