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Yosemite apparently uses a new security feature called kext signing. This will prevent the old method of TRIM enabling. See the Trim Enabler FAQ, The question Recovering from stop sign on boot screen might help you: Recovering from stop sign on boot screen For those who are stuck on the grey boot screen, here’s how you get back into OS X: ...


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One thing to check is the Extensions preference pane in System Preferences. Check whether there are any extensions listed for Finder. If so try disabling them by unticking the box beside them and seeing if the Finder behaves any better then. Another thing to check is Console. It can be a bit daunting at first but filter it to Finder related log entries ...


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There is not much to go on with what you have given. It could be an Automatic graphics switching issue. I've also had a bad SSD present similar freezes. I would recommend performing diagnostics on the Hard Drive, RAM and anything else you can. Rule out whether or not you have hardware that is failing. Then from there, you can begin to troubleshoot the ...


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i had the same issue (under iOS 6) and i got it fixed with changing the whole part of the front camera! hopely this will help you guys


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I had a similar problem after upgrading to OS X 10.10 Yosemite. The main window would not appear after launching the Reminders app. Clicking again on the icon on the Dock would cause the window to show up and the left pane did contain my reminders lists but the right pane where the actual reminders should show was blank. The window was also unresponsive to ...


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This problem can be resolved by upgrading to Mavericks or Yosemite via the Mac App Store.


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The issue was created because either the Google Drive App or the Dropbox App lost their download directories. But the shortcut links were still in Finder on the left. Once I removed the shortcuts to these folders the issue was resolved. Not sure of the technical details behind it, but something to check for next time.


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You seem like an advanced user (a few developer apps), so forgive me for stating the seemingly obvious, but you did ask… A reasonable course of action would be to try these in the order given (least disruption & work -> most). 1) Use Utilities>Disk Utility to: check/repair permissions on the start up volume verify/repair the SSD volume 2) If you ...


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After a similar experience with 10.9.5 (MBA mid-2012 13") I booted into Safe Mode and then back to a normal boot. This resolved the issue.


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Since your AHT did not detect problems with CPU or GPU or RAM or Disk next step is to look at your Console log. Based on the Console log you published it is your: BSD process name corresponding to current thread: kextd creating problems sometimes when you insert the USB. The kextd is responsible for loading unloading drivers as needed. Since it is ...


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Personally, I'd assume you're looking at the machine either having bad RAM, causing the OS to corrupt and thus forcing the reinstall, or the machine having a bad hard drive, or at least one that's starting to fail. For testing, I'd download a copy of Memtest86 (the free version) at http://www.memtest86.com/ , follow the directions to install it to a USB ...



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