Fix Mac OS X 10.7.3 Update Problems, CUI Errors, Stuck Installs, and Crashes | Jailbreak iOS 4.2.1 – 4.2.6 – 4.3 GM – 4.3 – 4.3.1 – 4.3.2 – 4.3.3 – 4.3.4 – 5, iPhone 4, iPhone 4S, iPhone 5, iPod, iPad, iPad 2, Apple TV and more

Mac OS X 10.7.3 update was just released, and for the vast majority of users the update installed trouble free. but not everyone was so lucky, and a series of problems have cropped up for some users, ranging from being stuck on an endless spinning loop progress indicator, to apps crashing nonstop, to a very bizarre “CUI CUI CUI” error screen filled with question marks (seen below), to other strange behavior.

The good news is these problems are relatively easy to fix. Basically all you need to do is install the OS X 10.7.3 Combo Updater over the existing messed up installation of 10.7.3.

The bad news is that if you already updated to Mac OS X 10.7.3 and you’re having problems, you’re going to have to find a way to use the Combo Updater over the troubled installation. If you’re just encountering the CUI errors, this is relatively simple, but if you’re stuck on a boot loop you need to get a bit more creative.

8 Troubled Mac Sites

Fix a Troubled Mac - Tao of Mac
May 9, 2004 Fix a Troubled Mac. I don't often do book reviews (or indeed actual reviews at all), since I can hardly

Apple - Support - Mac 101 - Troubleshooting 101
This section covers some of the issues that can occur with your Mac, and provides all the troubleshooting steps you

Fix Mac OS X 10.7.3 Update Problems, CUI Errors, Stuck Installs .
Feb 1, 2012 (Firewire or Thunderbolt required), and then point the 10.7.3 Combo Update at the troubled Mac and

Troubled Macs Wallpaper COLLAB by *C-quel on deviantART
Sep 20, 2009 An old collaborative picture by and C-chan, created as a submission to a wallpaper contest in the old

Fix a Troubled Mac - Slashdot
May 28, 2004 rossetti writes with this review of Fix a Troubled Mac, v1.3. "If you run a busy creative design business,

Startup Keystrokes http://fixa.troubledmac.com
Startup. Keystrokes http://fixa.troubledmac.com. Startup Keystrokes for troubleshooting. These keystrokes need to be

'Fix a troubled Mac' - Mac OS X Troubleshooting Book (PDF) - Help .
'Fix a troubled Mac' is one of the few books that offers comprehensive troubleshooting assistance for both Mac OS 9

troubled mac osx - MacRumors Forums 2 posts - 2 authors - Last post: Jan 26 troubled mac osx Mac OS X Server, Xserve, and Networking. forums.macrumors.com/showthread.php 10.7.3 Kills my WiFi - MacRumors Forums - MacRumors Forums - Mac . OS X 10.7.3 Update 'CUI Error' Fixable in Many Cases with Combo . [Resolved] troubled - MacRumors Forums - MacRumors Forums - Mac Rumors More from macrumors.com Restore Stability to a Troubled Mac with a Clean System Install
Jan 15, 2008 Restore Stability to a Troubled Mac with a Clean System Install, Keith Winston, Linux to Mac,

...

Fixing the OS X 10.7.3 Installation ProblemsThe simple formula is this:

  • Download Mac OS X 10.7.3 Combo Updater (direct link)
  • Run the 10.7.3 Combo Updater on top of the existing 10.7.3 installation
  • Reboot

If you can’t get to the desktop of the Mac in question, you can boot it with Target Disk Mode (Firewire or Thunderbolt required), and then point the 10.7.3 Combo Update at the troubled Mac and install it that way. If your OS X installation is totally screwed up and you can’t use target disk mode, you have a few choices:

  1. Restore from a recent pre-10.7.3 Time Machine backup, then install the Combo Updater
  2. Boot from Recovery HD, a Recovery Drive, or Lion USB drive, and reinstall everything

Not the best situation, but hopefully you have recent Time Machine backups.

Finally, if you’re reading this and haven’t had any problems but you’re now paranoid about the OS X 10.7.3 update, here’s all you need to do to be safe: Backup your Mac with Time Machine, download the Combo Updater and install the update manually. You’ll almost certainly be fine.

Thanks to Erik, Martin, and Apple Discussion Boards for the tips. Chime in if you have any additional info.

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