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Ashik
Ashik, Mac Technician
Category: Mac
Satisfied Customers: 11182
Experience:  Bachelor of Computer Application (BCA), 9+ Years of Experience in troubleshooting Macs, iPhone, iPad, iPod etc
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27 inch Mac with Yosemite When downloaded the about this mac

Customer Question

27 inch Mac with Yosemite When downloaded the about this mac does not work and the camera app does not work due to corrupted software. How do I reload yosemite without messing up all current settings?
JA: Just to clarify, what's the model of your Mac, and what operating system are you running?
Customer: mac os yosemite operating system on iMac 27 inch.
JA: Have you installed any updates recently?
Customer: it is set to automatically update. but I can go check.
JA: What troubleshooting have you tried?
Customer: none
JA: Anything else you want the Mac expert to know before I connect you?
Customer: that's it.
Submitted: 2 months ago.
Category: Mac
Expert:  Ashik replied 2 months ago.

Hi and Welcome. My Name is ***** ***** I look forward to assisting you today with your question.

You can reinstall your Mac OS X. Reinstalling OS X won't delete any of your files. It will just replace the corrupted system files with new one and that should fix the problem.

Restart your Mac and immediately hold down Command and R keys at the same time for 15 seconds and this will boot your Mac to the Mac OS X Utilities screen. From there, click Reinstall Mac OS X. Then follow the instructions to reinstall your Mac OS X.

If that didn't work, then restart your Mac and immediately hold down Command, Option and R keys at the same time for 15 seconds and this will boot your Mac to installation screen. Follow the onscreen instructions to reinstall.

Please let me know if that didn't work, so I will continue to help you until we fix the problem

Note : This is not my final answer. I strive to provide Excellent service or 5 star service. If you feel you've received anything less or if you are not satisfied or if my solutions didn't work, please don't rate me bad or poor or ok as it will badly affect my job here. Instead, please let me know and I will try my best to help you until you are fully satisfied or the issue is resolved.