Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.
Help in Notepad - Microsoft Support
Get answers to common questions about Notepad. To open Notepad, select the Start button, enter Notepad, then select Notepad from the results. Here are answers to a few common questions about Notepad:
Hardware & networking | Xbox Support
Learn about Xbox consoles, system requirements, and networking, and get troubleshooting help.
How to restart or power cycle your Xbox console | Xbox Support
Important If your console is in Sleep mode, the above steps will shut the console off completely. Sleep mode, or the ability to turn on your console by saying "Xbox on," won't be enabled until you restart the console.
Surface Pro help & learning
Surface app. With integrated help and support, you can find solutions to questions and issues directly from the Surface app. You can easily access device, charging, and warranty information and view and customize your connected Surface accessories.
NPV - Microsoft
本文介绍 Microsoft Excel 中 NPV 函数的公式语法和用法。. 说明. 使用贴现率和一系列未来支出(负值)和收益(正值)来计算一项投资的净现值。
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, Excel 2013
Excel
查找 Microsoft Excel 帮助和学习资源。 了解如何有效使用 Excel 的指导文章、指南、培训视频和提示。
Error codes in Device Manager in Windows - Microsoft Support
Cause. The device has no drivers installed on your computer, or the drivers are configured incorrectly. Recommended Resolution. Update the Driver. In the device's Properties dialog box, click the Driver tab, and then click Update Driver to start the Hardware Update Wizard.Follow the instructions to update the driver.
How to back up and restore the registry in Windows
Back up the registry manually. Select Start , type regedit.exe in the search box, and then press Enter.If you are prompted for an administrator password or for confirmation, type the password or provide confirmation.
Surface Laptop help & learning
Surface app. With integrated help and support, you can find solutions to questions and issues directly from the Surface app. You can easily access device, charging, and warranty information and view and customize your connected Surface accessories.
Mobile devices help & learning
Help for Microsoft mobile apps on Android and iOS devices. Find how-to articles and video tutorials for Samsung Galaxy and iPhone. Learn how to link your Microsoft 365 mobile apps, including Outlook, OneNote, and Your Phone.