Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

In the search box on the taskbar, type Manage BitLocker and then select it from the list of results. Or, select the Start button, and then under Windows System, select Control Panel.In Control Panel, select System and Security, and then under BitLocker Drive Encryption, select Manage BitLocker. Note: You'll only see this option if BitLocker is available for your device.

Cookies are small pieces of data stored on your device by websites you visit. They serve various purposes, such as remembering login credentials, site preferences, and tracking user behavior.

That verification method isn’t working right now: Sometimes the block may be tied to the verification method you are using.Try using another verification method connected to your account. For example, if you are using SMS to verify yourself and are hitting a block, try using an alternate email that is connected to the account to receive your authorization code.

With a Surface Keyboard or Type Cover, you have the flexibility to type comfortably and work your way anywhere. If you're not sure about the model of your device, see Find out which Surface model you have.. What's the difference between Surface Keyboard and Surface Type Cover?

Wenn Sie derzeit Windows 10 verwenden, bietet PC Health Check eine umfassende Eignungsprüfung für Ihr Gerät, um sicherzustellen, dass es die Mindestsystemanforderungen von Windows 11 erfüllt. Sie erhalten Informationen dazu, warum Ihr Gerät geeignet oder nicht geeignet ist, sowie Informationen dazu, was Sie tun können, wenn Ihr Gerät die Anforderungen nicht erfüllt.

Microsoft account help and support. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile.

删除公式时，公式的结果也会被删除。 如果不想删除该值，可以仅删除公式。 删除公式. 选择包含公式的单元格或单元格区域。

开始演示. 在“幻灯片放映”选项卡上的“开始放映幻灯片”组中，选择“从头开始”。 现在，如果在一台显示器上使用 PowerPoint，并且需要显示演示者视图，请在“幻灯片放映”视图左下角的控制栏上选择 ，然后选择“显示演示者视图”。 使用演示者视图中的控件

Add line numbers to an entire document. On the Layout tab, in the Page Setup group, click Line Numbers.