Bluetooth 4.0 (or later) with Low Energy (LE) support. To find out if Bluetooth LE is supported, on each PC, select the Start button, type device manager and select Device Manager from the list of results, expand Bluetooth, and then select the name of your Bluetooth radio adapter. Right-click it, select Properties, select Details, and then select Bluetooth radio supports Low Energy Central ...

The Windows 10 free upgrade offer ended on July 29, 2016. To upgrade to Windows 10, you will need to have a compatible PC and purchase a full version of the software.We recommend that you don’t install Windows 10 on an older device, as some Windows 7 devices are not compatible with Windows 10 or could experience reduced feature availability.

Battery saver is turned off.To find out if battery saver is turned on or off, select Start , then search for settings.Select Settings > System > Power & battery.If you want the best HDR video experience even when battery saver is turned on, select Battery saver, then turn off Lower screen brightness when using battery saver.For the best HDR video experience, Windows needs to be able to set ...

Click Verify next to your email address, and then click Send email.

Change the application's high-DPI scaling mode. In the High DPI scaling override area, select Override high DPI scaling behavior, and then try one of the following options:. Application – Disable all Windows scaling settings and only use the app developer's setting. This option was called Disable display scaling on high DPI settings in previous versions of Windows.

Note Each update in an .msu update package is installed in a separate session. Only one instance of Wusa.exe runs when you use Wusa.exe. Wusa.exe does not change the contents of the updates in .msu files.

Upload captions and transcripts Upload your own WebVTT captions and transcript file by selecting Video settings in the upper right of the web player.Expand the Transcripts and captions section if closed, then select Upload.In the dialog that appears, select the language of the file you’re uploading.

Method. Used for. Authenticator app. Two-factor verification and password reset authentication. Text messages. Two-factor verification and password reset authentication.

Test your camera with the Camera app. Select Start , then choose Camera from your apps. If you're asked to allow access to the Camera, select Yes.If the camera works in the Camera app, the problem might be with the app you're trying to use.

查找有关 Windows 操作系统的帮助和操作方法文章。 获取对 Windows 的支持，并了解安装、更新、隐私、安全等方面的信息。