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Use the System File Checker tool to repair missing or corrupted system ...
If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.
Recover lost or deleted files - Microsoft Support
You can't open or copy previous versions of files that were created by Windows Backup, but you can restore them. To restore a previous version, select the previous version, and then select. The file or folder replaces the current version on your computer, and the replacement can't be undone.
Troubleshoot external monitor connections in Windows 10
Troubleshoot issues that occur when setting up external monitors. If you are trying to set up an external monitor and it’s not working, press the Windows logo key + P to make sure that the Extend option is selected. If the Extend option is selected, try the following troubleshooting tips.
Microsoft 365 Customer Service and Support - Microsoft Support
Support for home products. Depending on your product and if it's still in support, Microsoft support experts are available to help you with a broad selection of support options and able to address product and service challenges for a more personalized experience.
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home
Xbox Status | Xbox Support
Check the Xbox services, games, and apps for any service outages.
Change or reset your password - Microsoft Support
If you want to change or reset the password you use to sign in to Windows, you have different options. This article outlines the different approaches you can take, whether you’re using a Microsoft account or a local account, logged in or at the sign-in screen.
Product keys for Windows - Microsoft Support
Product keys for Windows. A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.
Enable TPM 2.0 on your PC - Microsoft Support
Enable TPM 2.0 on your PC. Published August 2021. This article is intended for users who are not able to upgrade to Windows 11 because their PC is not currently enabled with TPM 2.0 or their PC is capable of running TPM 2.0 but is not set up to do so.
查找 Xbox 360 序列号和主机 ID 以及 Kinect 传感器序列号
在注册 Xbox 产品或对其进行维修之前,您需要知道产品序列号。. 您可能还需要知道主机 ID。. 查找这些序列号的方法如下。. 全部折叠. 查找 Xbox 360 主机序列号. Xbox 360 主机序列号位于以下三个位置中:. 在主机前端椭圆形 USB 门的后面. 在主机背部上 A/V 端口上方 ...
Get new themes and desktop backgrounds - Microsoft Support
Select Start , then select Settings > Personalization > Themes. Choose from a default theme or select Get more themes from Microsoft Store if you want to download new themes with desktop backgrounds that feature cute critters, breathtaking landscapes, and other smile-inducing options. Get more themes in Microsoft Store.