Hi all.I have IMac and I tried install windows 8 via USB Flash. Because my DVDRom is dead. :S iMac 21.5" , mid 2010 OS X ver. 10.8.4 so i search a lot of things on the internet.Then found this video; http://www.youtube.com/watch?v=I3MNnbtfyzs i did everything telling in video. Everythings ok. I restart and choose EfiBoot as told in video. But when i choose HDD partition a problem appers like picture; http://s9.postimg.org/ofgyr4zkf/20130911_013339.jpg What should i do???? Please help meee!!!