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Shut down (turn off) your PC - Microsoft Support
To turn off your PC in Windows 10, select the Start button, select the Power button, and then select Shut down.. I'm having trouble opening the Start menu
如何安装最新版本的 DirectX - Microsoft 支持
DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。. 某些应用程序和游戏需要 DirectX 9。 但是,你的计算机包含更新版本的 DirectX。 如果安装并运行需要 DirectX 9 的应用程序或游戏,你可能会收到错误消息“无法启动此程序,因为计算机中丢失 d3dx9_35.dll。
How to use two-step verification with your Microsoft account
Important: If you turn on two-step verification, you will always need two forms of identification.This means that if you forget your password, you need two contact methods. Or if you lose your contact method, your password alone won't get you back into your account—and it can take you 30 days to regain access.
CONCATENATE function - Microsoft Support
Problem. Description. Quotation marks appear in result string. Use commas to separate adjoining text items. For example: Excel will display =CONCATENATE("Hello ""World") as Hello"World with an extra quote mark because a comma between the text arguments was omitted.
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
Recovery options in Windows - Microsoft Support
Info for Windows Insiders. If you’re an Insider and the current preview build isn’t working for you, select Start > Settings > System > Recovery .Next to Go back , select Go back.This won’t remove your personal files, but it’ll remove recently installed apps and drivers, and change settings back to their defaults.
Add, turn off, or remove extensions in Microsoft Edge
Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.
How to find and enable missing Copilot button in Microsoft 365 apps
Important: Copilot in Outlook only supports work or school accounts, and Microsoft accounts using outlook.com, hotmail.com, live.com, and msn.com email addresses at this time. Any Microsoft account using an account from a third-party email provider, such as a Gmail, Yahoo, or iCloud, can still use Outlook, but won't have access to the Copilot features in Outlook.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, OneNote for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac
Troubleshoot problems updating Windows - Microsoft Support
Important: Before trying any of the solutions below, make sure you back up your personal files. You can back up your Windows PC, or insert a USB drive and use File Explorer to drag and copy important files to the USB drive.If you’re signing into Windows with a Microsoft account, your system settings will be automatically restored after updating, once you’re connected to the internet.
Reinstall Windows - Microsoft Support
Notes: Reinstalling Windows 11 using installation media while choosing to ‘Keep nothing’ (a clean install) will automatically enable reserved storage if the partition you reinstall Windows to is 20GB or larger. Reserved storage sets aside disk space to be used by updates, apps, temporary files, and system caches, thus improving the day-to-day function of your PC by ensuring that critical ...
Find my downloads in Windows 10 - Microsoft Support
To find downloads on your PC: Select File Explorer from the taskbar, or press the Windows logo key + E.