Please help, I recently update my mac to the latest security update of mac os Monterey, and yes my mac is from 2007 and running on Monterey. You can’t do much with it because it is so slow, but it worked for me. I have done one previous security update it took a long time but I had no major trouble with it like I’m having now. My computer will boot up and the progress bar will get about a fourth of the way and then stop. I have tried recovery options and everything but i can’t get into recovery mode or anything else. I noticed that when the progress bar freezes the Computer makes a clicking sound and it sounds like the hard drive shuts down and then starts up again and then doesn’t start up after that. Beneath is a video attached of the issue please turn up full volume and listen very closely. I want my Mac back! Please help!