An iMac starts, but becomes unresponsive after the login screen. How can you easily disable login
items to see if they are causing the issue?
Hold the Shift key at start up to Safe Boot.
Start the iMac to OS X Recovery and reinstall OS X
Hold Command-S to enter single-user mode, then mo
Start the iMac to OS X Recovery, open Terminal, and use it to delete all login items.