Summary of this story so far:
- School set EFI password. OP wants to circumvent it.
- OP told that they can't, unless they take it to an Apple Store with receipt
- OP knows this, but doesn't have receipt showing purchase of laptop, because it was part of the cost of tuition/supplies paid to the school by their parents. This gives more credence to the theory that the school maintains ownership of the system until OP is no longer a student there, as opposed to the theory that they bought it from their own hard-earned cash from Apple or an Apple Reseller.
- OP doesn't want to hear any responses stating anything other than suggestions on how to circumvent the EFI password put in place by school's IT Dept.
- Several responses from several people making one or more assumptions on the OPs situation (myself included), in support of, or against, the OP because the OP refuses to give more details than they already have.
- OP dual boots a couple other OS's to "work". Told to run them as virtual machines inside OS X. OP ignores the suggestion (or "didn't see it".)
- OP, in the end, is planning to:
- Try to beg the school's IT Dept into removing the EFI password (and possibly any other "restrictions" they have placed on the laptop.)
- Take their laptop home and keep it there from now on.
- Go to a lawyer to tell on the big mean bully school.
- Oddly enough, this is very similar to the behavior that is usually displayed by children when they don't get their own way:
- Whine and beg until the parent relents. If they don't relent, then go to STEP 2.
- Take toys and run away to sulk somewhere until parent relents. If they don't relent, then go to STEP 3.
- Get mad and stop talking to parents. Go to grandma or grandpa, and tell them what a big meanie their parents are being.
At this point, I'm going to agree with the couple that have already said that the OP is going to do whatever they want to in the end, and nothing anybody says here is going to convince them otherwise. Rather silly attitude to be having, TBH. There are much more important things to worry about in life, or be thankful for in life, than to cause such a ruckus about something so trivial.