Desktop Computer Sale I Got A Desktop Computer With Windows 98 And Dont Know The Supervisor Password So I Cant Install Linux. Help?

I got a desktop computer with windows 98 and dont know the supervisor password so i cant install linux. Help? - desktop computer sale

I press F1 at boot and asks me the password and I know because I am the computer in a garage sale. I am going to install Linux, but I need the password. Please help!