Model A1174 with 2 GHz Core Duo or Model A1207 with 2.16 or 2.33 GHz Core 2 Duo

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Having to start computer twice when I first start it up

When I start my iMac up for the first time, it only goes as far as the blue screen. Will not go any further. I have to force quit my computer and reboot and then I will see my desktop and everything will be fine. I can restart it any number of times after that and everything is fine. If I shut my computer down for the night and go back to it in the morning, I will again get the blue screen and have to force quit it and restart it again. Is this the beginning of hardware failure and if so how do I fix it?

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First I'd reset the PRAM and PMU/SMC and see if that makes a difference. The resets can sometimes force a computer to snap back into line when quirky behavior occurs.

But beyond that, this behavior usually is a result of a hard drive slowly going bad, or an ultra-cluttered OS install that is having trouble booting itself due to too much various junk on the drive confusing it as it boots up. Either way, I'd start by backing up your data. Next, I'd either wipe your drive and reinstall the OS, and see if that fixes it, or boot to another drive and see if you experience the same behavior. I think 90% of the time switching to a new drive and reinstalling the OS will fix the problem. Even if one of these steps seems to make it work, I'd still be a little wary of the drive itself...you should probably go into Disk Utility and scan the drive to see if any of the SMART alerts are going off (indicating the drive will soon fail, etc.)

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