What it fixes. The troubleshooter helps fix problems that: Corrupt registry keys on 64-bit operating systems. Corrupt registry keys that control the update data. Prevent new programs from being installed. Prevent existing programs from being completely uninstalled or updated.

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.

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies, TV shows, and Surface, Xbox ...

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.

Check the Xbox services, games, and apps for any service outages.

If you don't have an account, follow these steps to join. If you're having trouble joining a Teams meeting, try I can't join a Teams meeting. Note: For some meetings, admin settings prevent people who are not signed in from joining the meeting.

Learn common SharePoint Online tasks with these videos and tutorials, and get links to more training for SharePoint and Office 365.

Add, find, edit, or delete a contact in Outlook. Manage contacts in Outlook. Contact groups, or distribution lists, are a fast way to send a message to multiple email recipients, especially groups you repeatedly contact.

Select Start > Settings > Windows Update > Check for updates and then install any available updates. If the problems aren't all resolved, try running the troubleshooter again to check for additional errors, or see Fix Windows Update errors and follow the troubleshooting steps.

Learn how to rip (copy) and burn (create) CDs and data DVDs using Windows Media Player.