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安装 Windows 7 Service Pack 1 (SP1) Windows 7 支持已于 2020 年 1 月 14 日结束。. 我们建议你转到 Windows 11 电脑来继续从 Microsoft 接收安全更新。. 获取 SP1的推荐（并且最简单）方法是在“控制面板”中的“Windows 更新”中打开自动更新，然后等待 Windows 7 通知你 SP1 已准备 ...

Near the upper right corner of the PowerPoint window, select Record. Choose from two options. When you're ready, select the round, red Record button, wait for the countdown, then start speaking. To record from a specific slide, go to it, and then select Record. Note: Narration isn't recorded while the transition between slides happens, so pause ...

Open a service request in the Microsoft 365 admin center. This service is free. Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

If you are experiencing this error, you can try another method, such as Authenticator App or verification code, or reach out to your admin for support. Restart your mobile device. Sometimes your device just needs a refresh. When you restart your device, all background processes and services are ended.

Select Start > Control Panel > Programs. Select Turn Windows features on or off and uncheck Media Features and click OK. Restart your computer. Revisit the same window and recheck Media Features and click OK. Restart your computer again. If the above instructions fail to help, see the Windows Media Player support page.

Geben Sie im Suchfeld auf der Taskleiste Datenträgerbereinigung ein, und wählen Sie dann Datenträgerbereinigung aus der Ergebnisliste aus. Wählen Sie das zu bereinigende Laufwerk aus und wählen Sie dann OK aus. Unter Zu löschende Dateien, wählen Sie die Dateitypen aus, die entfernt werden sollen. Wählen Sie den jeweiligen Dateityp aus ...

The dial pad can be used like a typical phone to make a call to a phone number. (You can also type in names or groups.) To dial a number from Teams, go to Calls, and then enter the number of the person you want to reach by using the dial pad located on the left.Then click Call.. To call a person by name, type the name of a person into the dial pad.

There are a few common scenarios in which Windows running on a PC might be discovered to be non-genuine during validation. Repairs. If your PC has been repaired, you might start to see messages on your desktop that Windows isn't genuine.

Select Start , and then select Settings > Update & Security > Windows Security > Virus & threat protection . In an up-to-date version of Windows 10 or Windows 11: Under Current threats, select Scan options. In older versions of Windows 10: Under Threat history, select Run a new advanced scan. Select Microsoft Defender Offline scan, and then ...