Recover and restore deleted items in Outlook - Microsoft Support
Learn how to recover deleted items, such as email, contacts, calendar appointments, and tasks in Outlook.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, Office 365 operated by 21Vianet, Outlook.com, New Outlook for Windows
在 Windows 中查找 BitLocker 恢复密钥 - Microsoft 支持
了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。
Use Smart charging in Windows - Microsoft Support
Learn how Smart charging in Windows can help your battery last longer over time.
Use Internet Explorer in Windows 10 - Microsoft Support
Internet Explorer 11 support ended on June 15, 2022. We recommend you use Microsoft Edge for a faster, more secure and more modern web browsing experience.
Join a meeting without an account in Microsoft Teams
Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.
Applies To:
Microsoft Teams
Tips to free up drive space on your PC - Microsoft Support
Learn how to use Disk Cleanup to remove files from a previous installation of Windows.
Tips to improve PC performance in Windows - Microsoft Support
Learn how to improve Windows PC performance if your device is running slowly.
How to access OneDrive settings - Microsoft Support
Find out how to access OneDrive settings and pause features with the OneDrive Activity Center. Learn how to customize your cloud storage and file sharing preferences.
Applies To:
OneDrive (work or school), OneDrive (home or personal), OneDrive (work or school) operated by 21Vianet, OneDrive for Mac, OneDrive for Windows
Turn tablet mode on or off - Microsoft Support
To turn Tablet mode on or off, select action center on the taskbar and then select Tablet mode.
Fix Wi-Fi connection issues in Windows - Microsoft Support
Learn about different things you can try to fix network connection problems in Windows.