My Mac OS X is getting stuck

Asked By 20 points N/A Posted on -

Hi everybody,

I am having Mac OS X Mavericks only Apple computer. Today I have installed Mac OS X Yosemite beta into a hard drive (external) and I have booted Mac OS from the hard drive.

It was working fine, but when I shut down and restarted with old version Mavericks. But, it got stuck at a loading bar in the middle of it and after that no action happened.

Is this a problem with the Yosemite beta version or my Mavericks OS partition got corrupted? How can I troubleshoot this issue? Please kindly advise. Thanks a lot in advance, guys!

Answered By 0 points N/A #192936

My Mac OS X is getting stuck


The safest way to fix your Mac is by resetting the NVRAM and the PRAM. 

Your Mac stores certain information on the NVRAM and the PRAM, like speaker volume, screen resolution, and even any recent kernel panic information.  What you are experiencing is related to these functions, so a reset would be suggested. 

Resetting is simple, just follow the next steps:

1. Shut down you computer.

2. Turn it back on and then quickly press the the following combination of keys : Command-Option-P-R all at once. 

3. Hold down the keys until the Mac will reboot and then you will hear a startup sound a second time.

4. Release the keys after that.

This is how you reset your NVRAM and PRAM. After this reset, you will have to reconfigure your settings for the speaker volume, screen settings and time zone information.

If the problem you mention persists, then other solutions are too complicated and must be executed by the Apple customer service. 

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