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OS X - Operating System General OS operation information and support

Will reinstalling Snow Leopard overwrite applications?


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dcdraws

 
Member Since: Apr 03, 2014
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Yesterday my Mac Pro refused to start up.


On the grey screen a "question mark folder" flashed up for less than a second, then the apple logo and then it went to a blue screen and stayed there with the spinning circle going round and round...


I booted from the Snow Leopard install disk (I was on 10.6.8) and ran disk utility. Verified and repaired the disk and permissions. When I tried to reboot from the startup disk the same blue screen issue happened.


Have also booted in single user mode and done fsck, have reset the pram and smc but nothing seems to work.


I feel like the only option is to reinstall snow leopard from the disk but I have a lot of applications on my Mac and I am wondering if these will be wiped when I reinstall or will they be left untouched? I'd just rather not have the hassle of dealing with deauthorizing software licences etc... can't seem to find an answer online...


Also - any ideas of what has happened?


Any help much appreciated.


Many thanks,


David
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ferrarr

 
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How long did you let it rune?

Restart and hold "Option". Select your startup disk and let it go. If it doesn't get to your desktop/login after an hour, you may need to reinstall.

iPod 5th gen 30gb, iPad 2 16gb WiFi iOS 7, iPhone 4s 16gb iOS 7.
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dcdraws

 
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Definitely didn't leave it as long as an hour - will give that a go...
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toMACsh

 
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Only a clean install will affect your applications. It is possible to just reinstall the OS and leave applications untouched.
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chscag

 
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That's correct. By default, Snow Leopard does an Archive and Install unless as noted you install clean.
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harryb2448

 
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Sounds like your hard drive may fail or has failed. Disk Utility does not do a great job diagnosing failing drives.

Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!
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