使用 Windows 设置应用更改桌面背景和颜色。

Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

Add an email address or phone number to your Microsoft account and keep your current contacts, online storage, subscriptions, and account settings.

请参阅一些最常见的升级和安装错误，了解Windows 10和Windows 11，以及可尝试修复的错误。

Learn how to show hidden files, folders, and drives in Windows.

Add voting buttons to a message so that recipients can vote; results are tracked automatically in Outlook.

If you want to invite someone to a meeting you haven't organized, you can forward the meeting to them. When the recipient receives the meeting request, it appears to come from the meeting organizer and the meeting organizer receives notification that you forwarded the meeting.

How to use the MATCH function in Excel to search for a specified item in a range of cells, returning the relative position of that item in the range.

Learn how to troubleshoot and use the clipboard in Windows to paste multiple items, pin items, and sync your clipboard to the cloud.

Training: Learn how to quickly get started with Microsoft 365, share and collaborate, work in Microsoft Teams, work from anywhere, and try cool Microsoft 365 features.