https://gyazo.com/af67f875778ea43d967134f722ff9056
It reads: Can't find username but.. it's still there: even after I run the:
net user postgres /del as admin and reboot
This will cause a later error when trying to run the app installer as it states that an instance of postgresql is already found when there's nothing there (I've deleted it via control panel)
Update: I've manually deleted the postgres user folder and the app was already uninstalled via control panel as said. Still when running the combo it says that
the postgres app is already installed (print attached). There must be conflicting leftovers somewhere on my PC rendering the fresh install impossible.