Open Internet Explorer. On the Tools menu, click Internet Options, and then click the Content tab. Click Certificates, and then click the Personal tab. Important: If you digitally sign a document by using a digital certificate that you created, and then you share the digitally-signed file, other people cannot verify the authenticity of your ...

你可以选择桌面背景并随时更改它。. 选择 “开始 > 设置” > “个性化 > 背景 ”。. 在 “个性化设置背景 ”旁边的列表中，选择“ 图片 ”、“ 纯色 ”、“ 幻灯片放映 ”或“ Windows 聚焦 (”，) 查看来自世界各地的新图像。. 注意: 如果无法选择 “Windows 聚焦 ...

For more information see How to back up and restore the registry in Windows. There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results. Right-click Start , then select Run. Type regedit in the Open: box, and then select OK.

Um herauszufinden, ob Ihr PC dies unterstützt, wählen Sie Einstellungen >System>aus. Wählen Sie Helligkeit aus, suchen Sie nach dem Kontrollkästchen Helligkeit bei Lichtänderungen automatisch ändern, und wählen Sie es aus, um dieses Feature zu verwenden. Mit dieser automatischen Einstellung wird sichergestellt, dass der Bildschirm bei ...

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features. Select the Download button on this page. In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Security Troubleshooter.

To upgrade from Windows 11 Home to Windows 11 Pro manually, first check which edition you’re running and your activation state: Select Start > Settings > System > Activation. At the top of the Activation page, you see your edition: either Home or Pro. You‘ll also see if you’re activated under Activation state . Open Activation settings ...

If you're unable to activate Windows 11, the Activation troubleshooter could help. To use the troubleshooter, select Start > Settings > System > Activation , and then select Troubleshoot . You must be signed in as an administrator to use this option. If you're not already an administrator, for more info, see Create a local user or administrator ...

開啟螢幕觸控板. 使用螢幕觸控板以搭配觸控螢幕控制滑鼠指標。. 按住工作列 (或以滑鼠右鍵按一下) ，然後選取 [工作列設定 > 。. 在 工作列角落圖示下 ，將 虛擬觸控板設定 為 On 。. 選取工作列上的觸控板按鈕。. 了解如何在 Windows 10 中開啟螢幕觸控板。.

Enter a formula that contains a built-in function. Select an empty cell. Type an equal sign = and then type a function. For example, =SUM for getting the total sales. Type an opening parenthesis (. Select the range of cells, and then type a closing parenthesis). Press Enter to get the result.

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