ok. at the start of this year i got the latest iMac. i installed windows. but that isn't important. for some reason one day about ten of my programs stopped working. all showed a message "this is not supported on your architecture" so i searched it up on the internet, it said i would have to reinstall osx. so i got my two disks and popped them in. set it up and about halfway through "the hp printer drivers cannot be located" so i restarted the comp. both windows and osx have gone. so have NO operating system. and am too scared to tell parent. how do i install osx. shud i borrow someone elses.