Hello, Hi, i have a wireless computer and brought it to my school. but i don't know the security key of its wireless key so i can't connect what do i do?
The problem is not with your computer, you need to know the wireless security passphrase for the school computer.
As a system administrator supporting a high school network myself I would suggest you speak with the member of staff or company who is responsible for administrating the school network. Depending on their policies they should be able to help you.