(0x8007045b) Code Example


Example: 0x80070643

Use Windows Defender Command-Line Tool to Update the Signatures Alternately, you can use the Windows Defender command-line tool MpCmdrun.exe to update the signatures. Open an Admin Command Prompt window and type these two commands exactly:  "%ProgramFiles%\Windows Defender\MPCMDRUN.exe" -RemoveDefinitions -All "%ProgramFiles%\Windows Defender\MPCMDRUN.exe" -SignatureUpdate  The first command removes any installed signature and engine files, and this option is used when you have difficulties trying to update signatures. The 2nd command checks for the latest updates and installs it. In case the 2nd command fails with an error, use the alternate command to update the definitions directly from the Microsoft Malware Protection Center (MMPC) servers:  "%ProgramFiles%\Windows Defender\MPCMDRUN.exe" -SignatureUpdate -MMPC

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