10 months ago - prismaticmarcus - Direct link
Moved to Tech Support  
10 months ago - AndrewT - Direct link
You may have to use free utilities like Ccleaner and Revo Uninstaller to make sure all mention of the launcher is gone, including from the registry, before re-installing.

good luck!  
9 months ago - AndrewT - Direct link
What if you make a new Windows user and log into it with that, do you get the same issue when the launcher tries to install then?