Select your version of Microsoft 365 below to learn how to activate Microsoft 365. Activate Microsoft 365 or a non-subscription version of Office. Activate Office that's pre-installed on a new Windows device. Activate an Office purchase or offer that's included on a new Windows device.

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).

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.

Fix your audio drivers. Hardware problems can be caused by outdated or malfunctioning drivers. Make sure your audio driver is up to date and update it if needed. If that doesn't work, try uninstalling the audio driver (it will reinstall automatically).

Block you from uninstalling a program through Add or Remove Programs (or Programs and Features) in Control Panel. If you're trying to remove malware, you can use Windows Security (or another antivirus tool), or you can use the Windows Malicious Software Removal tool.

PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC. How to open PC Health Check. In Windows, use Search on the taskbar to ...

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.

For Microsoft 365 Family or Personal subscriptions: Select Install premium Microsoft 365 apps and follow the prompts to install or reinstall the desktop apps. On the Microsoft 365 subscription tab, select Manage. From here you can: Renew your subscription with a prepaid code or card. Learn more.

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.

If a Microsoft 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it. When you’re done, you might need to restart your computer. The steps to access the repair tool vary depending on your operating system.