Regarding the Maestro Error message
- Open My Computer and search for your league file.
- Open the file and right click "lol.launcher.admin" and run as administrator.
- Enjoy. If this does not work try these steps.
- Restart your computer
- Temporarily Disable/Make exceptions in your Anti-virus/Anti-spyware software
- Temporarily Disable/Make exceptions in your Firewall
- Disable process protection software.
- Make sure you're running software in Administrative Mode/With admin privileges
- In Windows Vista/Windows 7, double check your Account Controls If this does not work... I can't help any further.