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Question: No applications work after update to High Sierra

I've updated to High Sierra, all went well during the update.

When the update was done all (and when I say all, I mean all) applications stopped working.

I can not even open system preferences.


My computer is an early 2011 macbook 13", 2,7 GHz, i7, 8 GB RAM


Things I've tried:

- I cant copy/move/copy items to other folder or external USB's

- I can open finder and look any folder.

- I can start/restart the computer.

- When I try to open any program/application the message I get is "you can't open the application [insert any app name here] because it may be damaged or incomplete."

- I've tried to open time machine without any luck.

- I can't open system preferences.


I know I know I should just buy a new one but if you want to discuss your/mine view on life, my current situation, my needs when using the laptop we can do that with you in private 😉



I was posting here in hope anyone here might have some idea for a solution or maybe the same issue?
All the best!

MacBook Pro, macOS High Sierra (10.13.1)

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Nov 18, 2017 9:47 AM in response to algrolsch In response to algrolsch

Please try the following, in order. Stop at the step where the issue is resolved:

  1. Reset your Mac's SMC.

    Reset the System Management Controller (SMC) on your Mac - Apple Support

    Fans, keyboard backlight, status indicator, battery indicator, display backlight, power button, close/open the lid, sleep or shut down, battery doesn't charge, MagSafe indicator light incorrect status.

    Hold down the <shift><control><option> keys, and then, press the power button. Hold all of them for, at least, 10 seconds.

  2. Reset your Mac's NVRAM.

    How to reset NVRAM on your Mac - Apple Support

    Resets sound volume, display resolution, startup-disk selection, time zone, & kernel panic information.

    <option><command><P><R>

  3. Boot up your Mac in Safe Mode.

    Use safe mode to isolate issues with your Mac - Apple Support

  4. Boot up your Mac in Recovery or Internet Recovery Mode.

    About macOS Recovery - Apple Support

    When at the initial Recovery Mode screen, select the Disk Utility option.

    Run Disk Utility > First Aid to verify the startup disk's integrity.

  5. Make a Genius Bar appointment at your local Apple Store.

Nov 18, 2017 9:47 AM

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Question: No applications work after update to High Sierra