Thanks to those of you who contributed something helpful.
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You're welcome.
- Also this, check system variables -
- Also this, check system variables - I found out why windows didn't recognized avast as my AV. It turned out that my Path environment variable had been messed up and it missed the "C:\Windows\System32\Wbem" part if you need to add that put a semi-colon ; after the last entry before you add the WBEM path part.
Control Panel, System, Advanced tab, Environmental Variables button, find the Path variable, select it, click Edit (careful don't change anything right now) and just check that the variable includes what is in my image, click to expand.