my luancher wont work at all

every time i click on the launcher to open it it says
"windows can not access specific device, path, file. you may not have to appropriate permission to use this file." i have reinstall the game 5 times and it says the same thing every time so can some one help me.

Your parents probably limited your permissions.

make your admin on your computer and if you run on vista run as admin
and make sure ur anti virus and firewall isnt blocking anything