Reset Password of Another Account OR Get Admin CMD with limited accoun

Hey guys!
I have a little problem. My educational tablet has an Admin account which the school has put a password. They have made my account a limited one. I just want to reset the Admin account to install some stuff. The school wont give me the password. If this is not possible, then i could use CMD if i got admin rights. If anyone knows how to do the first option or the second option, then PLEASE reply below.

Info:
Touchscreen, No keyboard, Access to limited account.

Presumably the reason the school has set students as standard accounts and won't release the admin password is to prevent malware being installed accidentally and getting loose on their network. You can see their point.

Rather than asking them for the password or trying to get round it (you can't) why not ask them to check out the software you want to install and get them to install it for you?

You cannot reset the password of an admin account or give yourself admin rights with a limited account. This is by design. If either were possible it would largely nullify the purpose of a limited account. If this were possible, however difficult, Microsoft would very much like to know about it, so they could fix this serious problem.

Ok.
But can you help me to make or show the steps to make a macro? Because I just realised that password stuff is not allowed on this forum.