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sarak38630326
Participant
January 28, 2016
Answered

Help! Installation error: "Install" is damaged and can't be opened. You should eject the disk image.

  • January 28, 2016
  • 3 replies
  • 5882 views

Just replaced my hard drive in my 6 year old macbook pro. Trying to install Photoshop CS5. Operating system is up to date with the latest and greatest. I did de-authorize photoshop on the old hard drive before installing the new one.

Now, I've downloaded the install package from adobe's website and tried to run the install. When I do, I get  the following error message:

"Install" is damaged and can't be opened. You should eject the disk image.

"Install" is on the disk image "photoshop_12_LS1.dmg". Safari downloaded this disk image today at 4:33 PM from trials2.adobe.com.

Options given are to "cancel" or "eject disk image".

What have I done wrong?

    Correct answer gener7

    It's a common error when dealing with OSX's Gatekeeper which by default will not accept unsigned apps like Adobe's older CS5 software.

    First go to Apple > System Preferences > Security & Privacy. Under the General tab and at the bottom, set "Allow apps downloaded from" to "Anywhere".

    When you are finished and Photoshop launches, set it back to the default: "App Store and Trusted Developers".

    3 replies

    Mohammad Aamir Khan
    Adobe Employee
    Mohammad Aamir Khan
    Adobe Employee
    January 14, 2025

    Easy Fix - Allow it from Security TAB
    "Open Anyway" Need to be clicked from Security tab when this Error Appearted and relaunch app after allowing it

    Thanks
    Aamir Khan

    gener7
    Community Expert
    gener7Community ExpertCorrect answer
    Community Expert
    January 28, 2016

    It's a common error when dealing with OSX's Gatekeeper which by default will not accept unsigned apps like Adobe's older CS5 software.

    First go to Apple > System Preferences > Security & Privacy. Under the General tab and at the bottom, set "Allow apps downloaded from" to "Anywhere".

    When you are finished and Photoshop launches, set it back to the default: "App Store and Trusted Developers".

    S
    sarak38630326Author
    Participant
    January 29, 2016

    ‌This worked! Thanks!!

    gener7
    Community Expert
    gener7Community Expert
    Community Expert
    January 29, 2016

    The updates are important as well. You want Camera Raw to be updated to 6.7.1 as well as Bridge CS5.

    Here's how:

    Be sure Gatekeeper is off as before.

    Go here: Other downloads , look for and download/install the Adobe Application Manager. When this is done, open Photoshop and go to Help > Updates.

    Photoshop will gather and install all the relevant updates, saving you the trouble of  downloading each individually.

    Let me know how it goes.

    kglad
    Community Expert
    kgladCommunity Expert
    Community Expert
    January 28, 2016

    you probably have a corrupt/incomplete download.  you can confirm by comparing the expected file size with the actual downloaded file size.

    1. make sure you waited long enough for that dmg to complete downloading.  adobe files are large and can take quite a while to complete downloading.

    2. if the file's corrupt and downloading is complete, redownload.

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