Please could someone advise me on an iMac 27 boot problem.About a month ago I shut down my iMac and went out.5 hrs later I returned and the Mac would not boot,just the grey screen and spinning wheel.I took it to a local repairer who told me the iMac was 7 days out of warranty.he said it needed a new hard drive but when he fitted the new one the Mac would not recognize it.AFter this failed he managed to re-install the os and charged me £400 quid .SInce then the iMac has been much slower in operation and now it will not boot yet again,it will not recognize the os disk when I try to boot from it.I can't get it to start in safe mode either.When I press option on start up the disk is not showing all I get is a picture of a hd and title efi.
Could anyone please shed some light on this bearing in mind I know very little about these machines and am new to forums
Thanks in advance
Could anyone please shed some light on this bearing in mind I know very little about these machines and am new to forums
Thanks in advance