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Change your screen saver settings - Microsoft Support
Select the Start button, then go to Settings > Personalization > Lock screen, and select Screen saver settings.In the Screen Saver Settings window, choose a screen saver from the drop-down list. Change your screen saver settings
How do I use the Fn key/F Lock key/Alternate command keys?
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.
Find and open File Explorer - Microsoft Support
File Explorer in Windows 11 helps you get the files you need quickly and easily. To check it out in Windows 11, select it on the taskbar or the Start menu, or press the Windows logo key + E on your keyboard.. How to use File Explorer:
What happens if there's an unusual sign-in to your account
Select Review activity to check for any unusual sign-in attempts on the Recent activity page.If you see account activity that you're sure wasn't yours, let us know and we can help secure your account—if it's in the Unusual activity section, you can expand the activity and select This wasn't me.If it's in the Recent activity section, you can expand the activity and select Secure your account.
Office Help & Training
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Accessing Credential Manager - Microsoft Support
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.
Customize the Quick Access Toolbar - Microsoft Support
Notes: To find an item in the Choose commands from list, it may be helpful to first confirm its location and name within the app. Commands that are no longer visible in the app could still be listed here under All commands.To help identify this type of command, a more descriptive tooltip name may appear in parentheses next to the legacy command name in this form:
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, InfoPath 2013, SharePoint Workspace 2010
查看和删除 Microsoft Edge 中的浏览器历史记录 - Microsoft 支持
信息类型. 将删除的内容. 存储的内容. 浏览历史记录. 所访问站点的 url,以及每次访问的日期和时间。 在你的设备上(如果打开了同步,则在所有已同步设备上)
Zip and unzip files - Microsoft Support
Press and hold (or right-click) the file or folder, select (or point to) Send to, and then select Compressed (zipped) folder. A new zipped folder with the same name is created in the same location.
Multiply and divide numbers in Excel - Microsoft Support
Multiply numbers in different cells by using a formula. You can use the PRODUCT function to multiply numbers, cells, and ranges.. You can use any combination of up to 255 numbers or cell references in the PRODUCT function. For example, the formula =PRODUCT(A2,A4:A15,12,E3:E5,150,G4,H4:J6) multiplies two single cells (A2 and G4), two numbers (12 and 150), and three ranges (A4:A15, E3:E5, and H4 ...
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016