Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

Sign in to SharePoint. 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.

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.

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 Hardware problems can be caused by outdated or malfunctioning drivers.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).

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.

Activate Microsoft 365 or a non-subscription version of Office. When you start an Microsoft 365 app that's not activated, you'll be prompted to sign in to Microsoft 365. Be sure to sign in using the Microsoft account, or work or school account, that you used to buy or subscribe to Microsoft 365.

Get help for the account you use with Microsoft. Find how to set up Microsoft account, protect it, and use it to manage your services and subscriptions.

Getting ready for the Windows 11 upgrade. Ways to install Windows 11. Managing Windows 11 “System requirements not met” message in your organization. Learn what to do when you see a warning message that your device does not meet Windows 11 minimum system requirements to upgrade.

了解 Microsoft Teams 中的频道。 标准频道可供 Teams 中的所有团队成员使用。 大多数通道都是标准通道。 如果需要特定主题的较小特定受众，可以使用专用频道。 共享频道用于与团队或组织内外的人员协作。