在投影的电脑上，选择 “Windows 徽标键 + K ”，然后选择要连接到的电脑。 或者，可以在 Windows 搜索栏中搜索 “强制转换 ”，然后选择“ 连接到无线显示器”。在“显示设置”页上的“ 多个显示器”下，选择“ 连接到无线显示器”，然后选择“ 连接”。

Gridlines are the faint lines that appear around cells to distinguish them on the worksheet. By default, gridlines are displayed in worksheets using a color that is assigned by Excel. Gridlines are always applied to the whole worksheet or workbook, and can't be applied to specific cells or ranges.

If you sign in with a work or school account, learn how to manage payment methods for Microsoft business accounts. Add a new payment method. To add a new credit card, bank card or other payment method to your Microsoft account, follow the steps below:

You can create a simple formula to add, subtract, multiply or divide values in your worksheet. Simple formulas always start with an equal sign (=), followed by constants that are numeric values and calculation operators such as plus (+), minus (-), asterisk (*), or forward slash (/) signs.The following is an example of a simple formula.

If you want to give access to desktop apps, make sure that Let desktop apps access your microphone is turned on.You can't turn off microphone access for individual apps. Others can't hear me. Try the following solutions:

Windows 裝置可能會在不同時間取得新功能，因為 Microsoft 透過數種維護技術提供非安全性更新、修正、改進和增強功能，包括控管功能推出 (CFR)。 Windows 會告知您是否需要重新開機裝置以完成更新，而且您可以選擇最適合您完成更新的時間。

Find Teams on the web at https://teams.microsoft.com.. To use Teams, you need a Microsoft 365 account with a Business or Enterprise Microsoft 365 license plan. For more information, see How do I get access to Microsoft Teams?. For information about supported browsers for Teams on the web, see Web clients for Microsoft Teams.

Activate Office 2007. You’ll need to activate Office to keep your Office programs working fully. To activate from Excel, Word, PowerPoint, and Access:

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue.