Use the System File Checker tool to repair missing or corrupted system ...
If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.
Recover lost files on Windows 10 - Microsoft Support
Use this app to try to recover lost files that have been deleted from your local storage device (including internal drives, external drives, and USB devices) and can’t be restored from the Recycle Bin. Recovery on cloud storage and network file shares is not supported.
Fix problems that block programs from being installed or removed
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter.
How can I prevent users from connecting to a USB storage device?
Describes methods to prevent users from connecting to a USB storage device that is connected to a Windows XP-based, Windows Server 2003-based, or Windows 2000-based computer.
Open XML Formats and file name extensions - Microsoft Support
Microsoft Office uses the XML-based file formats, such as .docx, .xlsx, and .pptx. These formats and file name extensions apply to Microsoft Word, Microsoft Excel, and Microsoft PowerPoint.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel 2024, PowerPoint 2024, Office 2024, Excel 2021, Word 2021, PowerPoint 2021, Office 2021, Excel 2019, Word 2019, PowerPoint 2019, Office 2019, Excel 2016, Word 2016, PowerPoint 2016, Office 2016
Insert a signature - Microsoft Support
Insert a signature. Applies To. Windows macOS. Your handwritten signature gives your document a personal touch. You can scan your signature and store it as a picture to insert in the document. You can also insert a signature line to indicate where a signature should be written.
Applies To:
Word for Microsoft 365, Word for Microsoft 365 for Mac, Word 2024, Word 2024 for Mac, Word 2021, Word 2021 for Mac, Word 2019, Word 2016
USB port may stop working after you remove or insert a USB device
If you quickly and repeatedly insert and remove a USB device, the USB port may stop responding. When the port is in this state, it no longer recognizes any USB device, and the USB device will not work. This article helps you fix the problem.
在 Windows 中Wi-Fi網路不安全 - Microsoft 支援服務
若要解決這個問題,請執行下列其中一項:. 如果您的範圍內還有另一個 Wi-Fi 網路並且受到組織的信任,請中斷目前的 Wi-Fi 網路連線,然後連線到該網路。. 如需詳細資訊,請參閱 在 Windows 中連線到Wi-Fi網路。. 如果您是連線到家用 Wi-Fi 網路,請考慮變更您的 ...
Fehlercodes im Geräte-Manager in Windows - Microsoft-Support
Enthält eine Liste der Fehlercodes, die vom Geräte-Manager gemeldet werden können, und die möglichen Lösungen für Windows.