Thread: How to set a password to protect the PC?

I have a computer at home and it has Windows XP on it. My brother is a very inquisitive person and he always formats my computer and reinstalls Windows XP on it over and over again. I have the first boot device set as the hard disk and I use a BIOS password to try protecting it from him. But he can reset password by removing the CMOS Battery. How can I protect my computer from my brother? Please show me a. way so that cannot reset the password of the BIOS. Please guide me with some really useful tricks.

There is no technical help that I can provide related to this problem. You need to prevent your brother from messing with the computer by reasoning with him and explaining why his experiments disrupt your life. One way to keep him from opening the cabinet is to lock it cabinet if it has a lock. Many cabinets have locks and keys to prevent unauthorized access. Another option is to physically remove the optical drive which will prevent him from reinstalling Windows, thus hopefully restricting his experiments.