Can not run commands within command line, PowerShell or other terminals

Harm_Veenstra I've Solved it, as it was missing the following Paths in "Paths" In system variables:

%SystemRoot%\system32
%SystemRoot%
%SystemRoot%\System32\Wbem
%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\
%SYSTEMROOT%\System32\OpenSSH\

 It did not contain the paths, so they could not execute the commands, thank you for suggesting that the issue could have arisen from environment variables

 Correct:
Correct "path"

Incorrect:
Incorrect "path"