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. Run the System File Checker tool (SFC.exe) To do this, follow these steps:

Start by running the automated audio troubleshooter in the Get Help app. Get Help automatically runs diagnostics and takes the correct steps to fix most audio issues. Open Get Help. If the Get Help app is unable to resolve your sound or audio issue, try the possible solutions listed:

Open Command Prompt as an administrator and type sfc /scannow and press Enter. Conflicting third-party software: Other third-party software, especially media-related applications, may conflict with Windows Media Player. To resolve this, disable or uninstall third-party media-related software temporarily and see if the issue persists.

Resolves a vulnerability in Microsoft Windows that could allow elevation of privilege if a user browses to a malicious webpage.

This troubleshooter runs automatically on devices on Enterprise and Pro SKUs of Microsoft 365 Desktop that Microsoft detects are missing the package Microsoft.AAD.BrokerPlugin. Devices check for applicable troubleshooters once a day. The troubleshooter cannot be run manually.

When you start your computer successfully, the Windows Registry Checker tool (Scanreg.exe) creates a backup of system files and registry configuration information (including user account information, protocol bindings, software program settings, and user preferences) once daily.

Run the following command: %systemroot%\SysWoW64\regsvr32 <full path of the DLL> Regsvr32 error messages in Windows Vista and later versions of Windows. Regsvr32.exe error messages in Windows XP. Describes how to use the Regsvr32 tool to register and unregister OLE controls. Also describes the error messages that may occur and what they mean.

For Windows 10. The Windows DVD Player app is available free for a limited time for people upgrading to Windows 10 from Windows 7 Home Premium, Windows 7 Professional, Windows 7 Ultimate, Windows 8, or Windows 8.1 with Windows Media Center. See Windows DVD Player Q&A. For Windows 8.1.

When you start your computer successfully, the Windows Registry Checker tool (Scanreg.exe) creates a backup of system files and registry configuration information (including user account information, protocol bindings, software program settings, and user preferences) once daily.

Download Windows Installer 4.5 redistributable. The following file is available for download from the Microsoft Download Center: [Asset 4009805]Download Windows Installer 4.5 now. Note Check the following table to find which file to choose for your operating system：