Optimizing your drives can help your PC run smoother and boot up faster. To optimize them: Select the search bar on the taskbar and enter defrag.

The Microsoft Mouse and Keyboard Center is an app that helps you make the most out of your Microsoft keyboard and mouse. Mouse and Keyboard Center helps you personalize and customize how you work on your PC.

If these steps don't fix your Bluetooth problem, use Windows Feedback Hub to file a bug. This helps Microsoft determine the root cause of the problem. Include details about what you were doing or specific steps you were taking when the problem occurred. For example, if you started having Bluetooth problems after updating Windows or changing ...

DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。. 某些应用程序和游戏需要 DirectX 9。 但是，你的计算机包含更新版本的 DirectX。 如果安装并运行需要 DirectX 9 的应用程序或游戏，你可能会收到错误消息“无法启动此程序，因为计算机中丢失 d3dx9_35.dll。

Free. A Free badge means an active Microsoft 365 Family or Personal subscription isn't associated with the account you signed in with. Only the free web versions of Word, Excel, and PowerPoint are available to you. To access these apps in your browser, all you need to do is to sign in to Microsoft365.com with your Microsoft account and select the app you need from the app launcher .

If you still don't see an option to install Microsoft 365 on the Microsoft 365 Software page, it's possible your admin hasn't assigned a license to you. Find out if you have a license to install Microsoft 365. If you're a student or teacher and your institution didn't give you a license, find out if you're eligible to Get Microsoft 365 for free.

On the Email tab, choose your account (profile), and then choose Repair.

If you don’t see one of the network icons (or a similar one) shown in the following image, select the Up arrow to see if it appears there. Choose the Wi-Fi network you want, then select Connect . Type the network password, and then select Next .

If your device didn't come with one of those you can purchase one that can be connected to your device via USB from any of a number of popular retailers. Choose an option an select Set up. Follow the instructions to complete the configuration of Windows Hello. Sign-in experience.

On the privacy dashboard you can view or delete your data. Data that you delete on the privacy dashboard won’t be deleted from your device. To learn more about how to stop sharing your data with Microsoft, see Microsoft Edge, browsing data, and privacy. Browsing data you can delete in Microsoft Edge