Windows 10. In the search box on the taskbar, type Create a restore point, and select it from the list of results. On the System Protection tab in System Properties, select Create. Type a description for the restore point, and then select Create. Create a system restore point.

Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security. Notes: What you actually see on the Device security page may vary depending ...

在 account.microsoft.com 门户中，从标头中选择“ 服务和订阅 ”。. 找到想要安装的 Visio 版本并选择“ 安装 ”。. 如果你拥有多款 Microsoft 365 产品，则可能需要滚动与此 Microsoft 帐户关联的产品列表。. 提示: 若要安装其他语言的 Visio 或安装 64 位 版本，请选择 ...

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Notes: This feature is not supported if you sign in with a work/school account. If you use an authenticator app or other multifactor sign in, you will need an app password to sign in.. If you want to create another email address that uses the same inbox, sent, items, and contact list as your existing Outlook.com account, read how to create an email alias.

Select Open or Select Folder. Select Upload, select the files you want to upload, and select Open. If you don't see Upload > Folder, create a folder, and then upload the files to that folder. Note: If you have the OneDrive sync app installed, you can also upload with File Explorer. Select the files you want to upload and drag them to OneDrive ...

Contact Microsoft Support. What's new. Surface Pro. Surface Laptop. Surface Laptop Studio 2. Surface Laptop Go 3. Microsoft Copilot. AI in Windows. Explore Microsoft products.

Use desktops to keep different tasks organized or for different parts of your life, like work and home. To create a new desktop, select Task view > New desktop. To switch between desktops, select Task view . To change a background on a desktop, in Task view, right-click (or press and hold) on the desktop and select Choose background.

尝试使用 CLEAN 函数 或 TRIM 函数 。. 为方便起见，请使用命名区域. COUNTIF 支持公式 (中的命名范围，例如 =COUNTIF ( fruit 、“>=32”) -COUNTIF ( fruit “、”>85“) 。. 命名区域可位于当前工作表中，也可位于同一工作簿中的另一张工作表中，甚至来自另一个工作簿。. 若 ...

For technical support, go to Contact Microsoft Support, enter your problem and select Get Help. If you still need help, select Contact Support to be routed to the best support option. Learn how to cancel your Microsoft subscriptions such as Microsoft 365, Copilot Pro and Xbox. Troubleshoot issues if you can't cancel your subscription.