I'm having trouble with my iMac unable to install Mac OS updates and randomly freezing telling me I have to turn off and back on again.
The problem originated about 3 or 4 weeks ago. So I preformed disk utility to repair the disk form the CD. This didnt seem to solve the problem. I also tried to update OS from software update and I started getting messages saying "software update failed the necessary files could not be copied to the disk " or something to that effect.
I then decided to do a fresh re-install of the system. I zero formatted the hard drive before doing the reinstall. on reinstalling i started to get the message "software update failed the necessary files could not be copied to the disk " again.
So I took it to the apple store guineas bar where he managed to get the OS up and running from one of his network drives... all seemed well until I got it home and tried to do a software update... and back to the same old problem "software update failed the necessary files could not be copied to the disk"
I tried downloading the os update from the apple downloads page but no luck either
The computer will randomly also tell me i have to turn off the computer and back on again using the power button on the back
programs can randomly crash also... safari in particular... other programs like VLC will run fine though.
so whats wrong with my iMac... and how can I fix it??
any help much appreciated
oh yea my system is
Late 2009 21.5 iMac 3.06GHz :1TB(seagate) 4gb ram