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Add or remove add-ins in Excel - Microsoft Support
Important: If you originally installed the Excel add-in from a network file server or from a shared folder, you might need to remove the add-in from that location.If you installed the Excel add-in from a CD and you mapped your CD drive to a new drive letter after installing the add-in, you need to reinstall the add-in from the CD.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Fix connections to Bluetooth audio devices - Microsoft Support
If pressing the Connect button in action center doesn't find your device in Windows 10, here are some things to try:. Check action center to see if your Windows device supports Bluetooth. If it does, there'll be a Bluetooth button in action center. Make sure it's turned on.
Troubleshooting Microsoft Wireless Display Adapter
Note: If you can’t select anything in the Allowed apps and features box, you aren't logged in as an administrator. Select Change Settings, type your administrator password, and select Yes.If you're an administrator on your device, the password should be the same as the one you used to set up your device. Then, make sure Private and Public are selected and select OK.
KB5034441: Windows Recovery Environment update for Windows 10, version ...
IMPORTANT This update is not needed and will not be offered if your Windows Recovery Environment (WinRE) meets any of the following conditions: If the WinRE recovery partition does not have sufficient free space.
Fix connections to Miracast wireless displays - Microsoft Support
Make sure your device drivers are up to date and the latest firmware is installed for your wireless display or adapter (see the support info on the manufacturer's website for instructions or search Microsoft Store for your manufacturer's app to help you).
Optimizations for windowed games in Windows 11
Optimizations for windowed games improves gaming on your PC by using a new presentation model for DirectX 10 and DirectX 11 games that appear in a window or in a borderless window.
Windows help and learning
Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
Updating to the latest version of Skype - Microsoft Support
We’re continually releasing updates to our application, based on customer feedback. Check out What's New in the latest updates for Skype on desktop and mobile.
Fix problems signing in to the Xbox app - Microsoft Support
On your PC, go to Xbox.com and select Sign in.If there are problems with your account, the instructions will help you solve them. If you can’t go beyond the sign-in screen, select Forgot my password and follow the instructions.
Windows 更新疑难解答 - Microsoft 支持
如果你在下载和安装 Windows 更新时收到错误代码,更新疑难解答可以帮助解决该问题。 选择“开始 ”>“设置> ”>“更新和安全 ”>“疑难解答”>“其他疑难解答”。 接下来,在“启动并运行”下,选择“Windows 更新” > “运行疑难解答”。 运行完疑难解答后,最好重启设备。