Apple Training Series: Mac OS X Support Essentials v10.6: A Guide to Supporting and Troubleshooting Mac OS X v10.6 Snow Leopard

The following are split-half search techniques:

  • Start in single-user mode by pressing Command-S during startup

  • Perform a Safe Boot by pressing Shift during startup

  • Suppress automatic login during startup by pressing Shift when the progress bar appears until the login window appears

  • Systematically kill processes

  • Systematically remove potential problem files

  • Disconnect peripherals

  • Run Network Utility to evaluate other devices and computers on the network

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