browse to your hard-disk (C:\) and create a new folder.
I suggest using the path:
C:\Starmade
however, any path not in a protected area from windows will work. ('Programs', 'Desktop', 'Download' and 'My Files' are places that can cause problems. Antivirus scanners block access or scan every file-access and slow down your game without a good reason.)
Now place a fresh downloaded launcher from the download page
http://star-made.org/download
in that folder and start it.
Now select the correct path in the Launcher:
enter the correct path into the opening dialog:
Hit OK and
let it install the latest version by clicking on:
in the Launcher.
Your starmade should work now.
If not please add log from that installation.
Open:
C:\Starmade\StarMade\logs
and send in all files you see in that folder.
We will check for the source of the problems then.
- Andy