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

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Open Display settings. If you want to change the size of your text and apps, choose an option from the drop-down menu under. To change your screen resolution, use the drop-down menu under. Learn how to use the Settings app to view and change display settings in Windows.

If you see a message that no changes or updates were necessary, you can try recovery options, or find out more about Outlook error codes and upgrade and installation error codes. Find troubleshooters. Fix-it tools aren’t used in Windows 10. Instead, use a troubleshooter to help solve problems with your PC.

In some editions of Windows 10, it's included as an optional feature that you can enable. To do that, select the Start button, then select Settings > Apps > Apps & features > Manage optional features > Add a feature > Windows Media Player, and select Install. Enable Windows Media Player. DVD playback isn't included.

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.

If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Find operating system info in Windows 11. To find out which version of Windows your device is running, press the Windows logo key + R, type winver in the Open box, and then select OK. Here’s how to learn more: Select Start > Settings > System > About . Open About settings.

Use Remote Desktop on your Windows, Android, or iOS device to connect to a Windows 10 PC from afar. Here's how to set up your PC to allow remote connections and then connect to the PC you set up.