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Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Download and install or reinstall Office 2019, Office 2016, or Office ...
From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options. Choose the language and bit version you want, and then select Install.
Applies To: Office 2019, Office 2016, Office 2016 for Mac, Office 2013
How to use the PC Health Check app - Microsoft Support
PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC.
Open and run DxDiag.exe - Microsoft Support
Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.
Cannot Create or Open a Dial-Up Networking Connection
In the Named box, type tapiini.exe tapi.dll tapiui.dll tapisrv.exe tapiupr.exe tapi16.exe remotesp.tsp tsp3216l.tsp tsp3216s.dll tlocmgr.exe telephon.cpl tcmsetup.exe tapi.inf, click your primary disk in the Look In box, and then click Find Now.
Fix sound or audio problems in Windows - Microsoft Support
If you’re having sound or audio problems, the following suggestions might help. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn’t.
无法创建或打开一个拨号网络连接 - Microsoft 支持
方法 2: 检查有损坏的 Telephon.ini 文件. 单击开始,指向查找,然后单击 文件或文件夹 。. 在名称框中,键入telephon.ini tapiini.exe、 主磁盘中的查找范围框中,单击,然后单击立即查找。. Telephon.ini 文件中,用鼠标右键单击,然后单击删除。. 双击要创建一个新的 ...