Hello! I have 2011 mac mini, i5 with discrete graphic, 8GB RAM and 500GB HDD. it runs on Lion. I want to install win7, but I can't partition my HDD because it opens error message like this: Click for large view - Uploaded with Skitch however, I have tried to partition disk with disk utility, and it won't work also: Click for large view - Uploaded with Skitch then I have booted in recovery mode and ran disk utility there, used all techniques (verify disk permissions, repair disk permissions, verify disk, repair disk) and although it returned some info that I have to repair disk (and I did that afterwards, then it showed no faults in disk) it still won't partition. does anyone have an idea what to do, I am desperate to play GTA San Andreas WITHOUT bloody lag like in Mac App Store version. thank you all for your help, sorry for my english, but It's my second language.