If you experience a black or blank screen on your Windows device, try the following: To wake the screen, use one of the following keyboard shortcuts: Windows logo key + P to choose a presentation or projection display mode. Ctrl + Alt + Del to display security options. For a black screen, use the following keyboard shortcut: Windows logo key ...

下面介绍如何将回收站显示在桌面上： 选择任务栏左下角的“开始”按钮，然后选择“设置”。 注意: 若要访问 Windows 8.1 中的桌面图标设置，请从屏幕右边缘向内轻扫，然后选择“ 搜索”。在搜索框中键入“桌面图标”，然后选择“显示或隐藏桌面上的通用图标”。

Select the cell in the worksheet where you want the drop-down list. Go to the Data tab on the Ribbon, and then Data Validation. Note: If you can’t select Data Validation, the worksheet might be protected or shared. Unlock specific areas of a protected workbook or stop sharing the worksheet, and then try step 3 again.

Press the Start button on the taskbar, type settings, and then select Settings.; On Windows 10, select Update & Security.On Windows 11, select Windows Update.; On the Windows Update page, select Check for updates to see if any updates are available for your device.; Once the updates have downloaded, select Install now to start the installation.; Following installation, we recommend that you ...

Create a presentation. Open PowerPoint. In the left pane, select New. Select an option: To create a presentation from scratch, select Blank Presentation. To use a prepared design, select one of the templates. To see tips for using PowerPoint, select Take a Tour, and then select Create, . Add a slide.

查找 Windows 7 或 Windows 8.1 的产品密钥. 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。. 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。. 如果 Windows 已预先安装在计算机上，产品密钥应显示在设备 ...

To change which user is signed in, select the Start button on the taskbar. Then select the account name icon or picture to see a list of users you can switch to. Select another user to switch. To edit the account name shown, select the account type: Microsoft personal account Microsoft work or school account Local account.

Install and use a scanner in Windows 10. Windows 10. When you connect a scanner to your device or add a new scanner to your home network, you can usually start scanning pictures and documents right away. If your scanner doesn't automatically install, here's some help to get things working. Select one of the following sections, or select Show all.

Select your account and then select Sign in to sync. To enter a new account, select Add Account and follow the prompts. When you’re signed in, Microsoft Edge syncs your favorites, passwords, history, open tabs, autofill form entries (such as your name, address, and phone number), and other data types across the devices you use with this account.

Sticky Notes 入门. 便笺. 欢迎便笺！. 我们仍然是在 Windows 桌面上编写快速笔记的最佳方法，但现在你也可以随身带便笺，让你可以跨应用和你喜欢的设备捕获、查找和使用笔记。. 注意: 便笺中的新功能和更新功能可能会在逐步推出的基础上发布，这意味着它们 ...