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Screen mirroring and projecting to your PC or wireless display
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.
Use the Microsoft Wireless Display Adapter - Microsoft Support
The Microsoft Wireless Display Adapter is a strong, reliable way to project your content, photos, and videos to a big screen. Before you begin. Identify your wireless display adapter model. Check which devices are compatible with your adapter. Set up your adapter. Connect the adapter to your display. Connect to your adapter from your Windows PC.
Contact Us - Microsoft Support
Open a service request in the Microsoft 365 admin center. This service is free. 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.
Securely browse the web in Microsoft Edge - Microsoft Support
Microsoft Edge offers several features and practices that can enhance your online security and protect your personal information. Follow these guidelines to browse the web securely in Microsoft Edge. Verify the connection icon in the address bar. Enable Microsoft Defender SmartScreen. Enable enhanced tracking prevention. Enable secure DNS.
Sign in to SharePoint - Microsoft Support
SharePoint is a browser-based app that you connect to through your web browser, like so: Go to office.com, and sign in to your work or school account. In the upper left corner of the window, select the app launcher > All apps > SharePoint.
Applies To: SharePoint in Microsoft 365
Learn about your profile in Microsoft Teams (free)
Learn how to adjust your Microsoft Teams personal account settings using your Microsoft account information.
Applies To: Microsoft Teams, Microsoft Teams personal
How to use the PC Health Check app - Microsoft Support
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.
Share SharePoint files or folders - Microsoft Support
You can see who a SharePoint file is shared with, and stop sharing SharePoint files or folders, or change permissions, at any time. Notes: To share OneDrive files and folders, check out Share OneDrive files and folders. You can also share the entire site.
Applies To: SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint in Microsoft 365, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, SharePoint in Microsoft 365 Small Business, SharePoint operated by 21Vianet
Activate Office - Microsoft Support
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.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Microsoft 365 admin, Project for Office 365
Use the System File Checker tool to repair missing or corrupted system ...
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.