Learn how to download, install, and use the PC Health Check app to check your device's compatibility with Windows 11 and get tips to improve its performance.

使用 Windows 中的“设置”应用通过蓝牙发送文件。 与拥有手机、笔记本电脑或平板电脑的好友共享照片、视频或其他类型文件。

On the Home tab, in the Number group, click the arrow next to the General box, and then click More Number Formats.

Training: Get up and running quick. Note: If you already had an account signed in to OneDrive and you want to add another account, click the OneDrive cloud icon up in the Menu bar, click the three dots to open the menu, and select Preferences.Click the Account tab, select Add an Account to start OneDrive Setup, and then sign in.

Get started with basic tasks in Excel such as opening a workbook, entering and formatting data, calculating data, and trying some quick analysis features..

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Unlike Microsoft Word, Microsoft Excel doesn't have a Change Case button for changing capitalization. However, you can use the UPPER, LOWER, or PROPER functions to automatically change the case of existing text to uppercase, lowercase, or proper case. Functions are just built-in formulas that are designed to accomplish specific tasks—in this case, converting text case.

Important: For users in the European Economic Area (EEA), you can transfer your license to another person as permitted by applicable law, by contacting customer support.You’ll be required to verify your identity through your Microsoft account to confirm you have legitimate license rights. You’ll also need to provide an email for the person you’re transferring the license to.

Check the cables (for wired printers). Make sure that the printer's USB cable is properly connected from the printer to your PC. If your USB isn’t recognized, see Automatically diagnose and fix Windows USB problems. Check the wireless connection (for wireless printers).Do one of the following:

If instructions to install the update don’t automatically appear, you can start the process manually. To do this, press the Xbox button to open the guide, choose Profile & system > Settings > Devices & connections > Controllers & headsets, and then select the controller you want to update.On the Xbox Wireless Controller screen, select “…” to check the firmware version for your controller.