Change your desktop background image - Microsoft Support
Use the Windows Settings app to change your desktop backgrounds and colors.
如何登录 Outlook 网页版 - Microsoft 支持
Outlook 网页版是组织使用的基于 Web 的 Outlook 版本。你需要使用工作或学校帐户登录才能访问此基于 Web 的 Outlook 版本。 你的工作或学校帐户通常由组织中的某人分配给你。
Applies To:
Office for business, Office 365 Small Business, Outlook on the web, Outlook on the web for Exchange Server 2016
Edit a PDF - Microsoft Support
Open and edit PDF content in Word. To edit a PDF, open it in Word. This works best with PDFs that are mostly text.
Applies To:
Word for Microsoft 365, Word 2021, Word 2019, Word 2016
How to adjust power and sleep settings in Windows
To adjust power and sleep settings in Windows 10, go to Start , and select Settings > System > Power & sleep.. Under Screen, select how long you want your device to wait before turning the screen off when you're not using your device.
Switch to the new Microsoft Teams - Microsoft Support
In the new Teams, you can switch between apps, respond to chat messages, and join meetings and calls more quickly while using less battery and memory.
Applies To:
Microsoft Teams
Can I upgrade to Windows 11? - Microsoft Support
You can upgrade from Windows 10 to Windows 11 if your device meets hardware specifications, and if the Windows 11 release has been made available to your device.
Turn on device encryption - Microsoft Support
Learn how to turn on device encryption, or standard BitLocker encryption in Windows.
Free up drive space in Windows - Microsoft Support
Learn how you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.
Update to the new Microsoft Edge - Microsoft Support
Experience the web in a whole new way by switching to the Microsoft Edge browser from Internet Explorer or Microsoft Edge Legacy. Move to Microsoft Edge
Faster and more secure Wi-Fi in Windows - Microsoft Support
Learn how to use Wi-Fi 7 and Wi-Fi 6 and WPA3 in Windows for better wireless coverage and network security.