若要使用 DirectX 诊断工具 检查你电脑上使用的是哪个版本的 DirectX，请选择 “开始” 按钮，在搜索框中键入 “dxdiag” ，然后按 Enter 。. 在 DirectX 诊断工具 中，选择 “系统” 标签页，然后在 “系统信息” 下面检查 DirectX 版本号。. 你首次使用 DirectX 诊断工具 ...

Recover lost or deleted files. Windows 7. Note: If you've recently updated Windows 10 and are having problems finding files, see Find lost files after the upgrade to Windows 10. If you can't find a file on your computer or you accidently modified or deleted a file, you can restore it from a backup (if you're using Windows backup) or you can try ...

使用 COUNTIF 函数对大于或小于数字的数字进行计数。. 单元格 A11 和 A12 具有公式，其中 COUNTIF 检查 B2：B7 范围内的发票值数小于 20000 且大于或等于 20,000。. COUNTIF 查找 4 个小于 20000 的值和 2 个大于和等于 20000 的值。. 查看一个示例，了解如何使用 COUNTIF 函数在 ...

Game Pass Core time will convert to Game Pass Ultimate time at a ratio of 3:2 and be rounded up to the next full day. For example, 90 days of Game Pass Core time will convert to 60 days of Game Pass Ultimate time. Prepaid time conversion is final and non-refundable, and ratios are subject to change. For more info on Game Pass Ultimate, visit:

To start a party when cloud gaming from the Xbox app for Windows: Press Windows logo key + G on your keyboard or press the Xbox button on your controller to open Game Bar. Select Widget Menu > Xbox Chat > Start a party. Select Add someone and then choose the friends you want to invite. Things to keep in mind:

On the Xbox you want to copy from, press the Xbox button on the controller to open the guide.; Go to Profile & system > Settings > System > Back up & transfer > Network transfer and check the Allow network transfer box.This makes that Xbox visible to other consoles on the same network. Once you’ve allowed transferring from the “host” Xbox, turn on the console onto which you’ll be ...

Select the button above to get directly to Settings, or follow these steps to set up Windows Hello. Select Start > Settings > Accounts > Sign-in options. Select Facial recognition (Windows Hello) to set up facial recognition sign-in with your PC's infrared camera or an external infrared camera. Select Fingerprint recognition (Windows Hello) to ...

Check here for the known game issues that we're currently tracking and find out what you can do about them.

View hidden files and folders in Windows. Windows 11 Windows 10. Windows 11 Windows 10. Open File Explorer from the taskbar. Select View > Show > Hidden items. Learn how to show hidden files, folders, and drives in Windows.

了解如何使用遊戲服務修復工具來疑難排解電腦上的遊戲服務安裝和更新問題。備註 在某些情況下，您可能無法執行 [遊戲服務修復工具]，除非您以您電腦中的 [本機系統管理員] 的登入身份登入。 當 Windows 作業系統是 20H1 或更舊版本時，會發生此情況。 如果您無法執行 [遊戲服務修復工具]，您 ...