Windows Update / Defender update issue
Today while updating my Windows defender to latest version, I was facing below Issue and it was not updating to latest version and showing error code 0x80070643 multiple retried and troubleshoot were performed but nothing helped. Later I found below commands which help to update defender using command prompt. cd %ProgramFiles%\Windows Defender MpCmdRun.exe -removedefinitions -dynamicsignatures MpCmdRun.exe -SignatureUpdate and it fixed the issue.