Keystroke. What it does. Windows logo key + R Opens the Run command. Windows logo key + S Opens Search. Windows logo key + E Opens File Explorer. Alt + Tab. Opens Task Switcher, moving forward with each press of Tab, switching to that window on release

Credential Manager lets you view and delete your saved credentials for signing in to websites, connected applications, and networks. To open Credential Manager, type credential manager in the search box on the taskbar and select Credential Manager Control panel.

Tip: In Windows 7, you can synchronize your computer clock with an Internet time server to keep the computer clock up to date.To do this, select the date or time in the bottom right-hand corner of your screen, and then select Change date and time settings.Select the Internet Time tab, select Change settings, select Synchronize with an Internet time server, and then select Update now.

Alternate command key. What it does. Help. Opens the Help system (if any) for the active window. Undo. Cancels the previous action. Redo. Cancels the previous Undo action.

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.

When you schedule a Microsoft Teams meeting from Outlook, a dial-in number and conference ID are included automatically. If you have PSTN conferencing enabled in Teams, they are also included.

Explore the new and refreshed apps of Windows 11, from Photos to Microsoft Store. Watch the video and read tips to find tools to stay creative and productive, whether on your phone or on your PC.

Microsoft account help and support. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile.

如果要表达对收到的电子邮件的支持或满意度，无需输入文字答复，只需单击“赞”按钮即可。还可以将鼠标悬停在“赞”按钮上方，查看为该电子邮件点赞的其他人。

If the self-help answers don't resolve your issue, try a different search, or scroll to the bottom of the Help pane and, under Still need help?, select Yes.