Hi Nadav Scher,
I am Dave, I will help you with this.
1
This is very unusual, what is the exact method are you using to access that Environment Variables utility?
2
is there a work or school account linked to your PC possibly for software installation?
Open the Settings App.
Go to Accounts.
Select Emails and Accounts, is there is a work or school Email listed there?
Select Access Work or School, is there is a work or school Email listed there?