Using OSX 10.7.5 on my iMac 2006.
The problem started when my address book always crashed on startup.
Would try and log in as another user to see if the address book started.
Started wrong login user = Guest, and it wanted to install osx. I stopped by rebooting.
The only way to get the computer to not start installing osx on startup is that I hold
down the shift key and start in safe mode.
Any idea of getting the computer to not start with the installation of osx or not to start in safe mode?
Checked startup accounts, users, startup items.
No USB sticks, CD / DVDs or hard drives connected.
Thank you for providing so much detail with the startup issue you are experiencing. I found a couple of resources that may help with the issue you are experiencing.
First, I recommend verifying Macintosh HD OS X, 10.7.5 is selected as the Startup Disk in System Preferences:
Change your startup disk for every startup
- Choose Apple menu > System Preferences, and then click Startup Disk.
- If necessary, click the lock icon and type the name and password for an administrator user.
- Click the icon of the disk you want to use, and then click Restart.
You can find the full article here:
If the issue persists after verifying this setting, I recommend resetting the NVRAM/PRAM on your computer:
Resetting NVRAM / PRAM
- Shut down your Mac.
- Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
- Turn on the computer.
- Press and hold the Command-Option-P-R keys before the gray screen appears.
- Hold the keys down until the computer restarts and you hear the startup sound for the second time.
- Release the keys.
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