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Katalin5ED1
Known Participant
February 14, 2025
Answered

Lightroom Classic does not launch on windows 14.2

  • February 14, 2025
  • 3 replies
  • 1927 views

Lightroom classic 14.2 does not launch at all. Removed it, reinstalled it still not. Lightroom classic is essential to my work. How to fix this???

 

[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

    Correct answer KR Seals

    Something like this happened to me recently. Very similar symptoms. It turned out that I was trying to load a corrupted catalog. The catalog had been corrupted by bad RAM in the new build I had just finished. I unzipped the most recent backup, renamed the bad catalog, the copied the unzipped backup to the Lightroom Classic folder and it started right up.

    3 replies

    KR Seals
    Community Expert
    KR SealsCommunity ExpertCorrect answer
    Community Expert
    February 16, 2025

    Something like this happened to me recently. Very similar symptoms. It turned out that I was trying to load a corrupted catalog. The catalog had been corrupted by bad RAM in the new build I had just finished. I unzipped the most recent backup, renamed the bad catalog, the copied the unzipped backup to the Lightroom Classic folder and it started right up.

    Ken Seals - Nikon Z 9, Z 8, 14mm-800mm. Computer Win 11 Pro, I7-14700K, 64GB, RTX3070TI. Travel machine: 2021 MacBook Pro M1 MAX 64GB. All Adobe apps.
      K
      Katalin5ED1Author
      Known Participant
      February 17, 2025

      Yaaay!!! Thank you this caused the problem I fixed it! 🙂

      Thank you for sharing!!

      KR Seals
      Community Expert
      KR SealsCommunity Expert
      Community Expert
      March 10, 2025

      I'm gl;ad it helped 🙂

       

      Ken Seals - Nikon Z 9, Z 8, 14mm-800mm. Computer Win 11 Pro, I7-14700K, 64GB, RTX3070TI. Travel machine: 2021 MacBook Pro M1 MAX 64GB. All Adobe apps.
      GoldingD
      GoldingD
      Legend
      February 15, 2025

      Have you checked for an errant lock file?

       

      AxelMatt
      Community Expert
      AxelMattCommunity Expert
      Community Expert
      February 14, 2025

      Do you get an error message? If yes, please post the message word-by-word.

       

      On a first step you should restore the LR preferences to the default settings.

      Goto to the following folders:

      • macOS: /Users/[user name]/Library/Preferences/
      • Windows: Users\[user name]\AppData\Roaming\Adobe\Lightroom\Preferences\
       
      Drag the following files to the Recycle Bin on Windows or to the Trash on macOS:
      • macOS: com.adobe.LightroomClassicCC7.plist
      • Windows: Lightroom Classic CC 7 Preferences.agprefs

       

      Restart your computer and launch Lightroom Classic. 

       

      If this doesn't work try is to switch off the GPU support.

      Navigate to one of the following folder:

      • macOS: /Users/[username]/Library/Preferences/com.adobe.LightroomClassicCC7.plist
      • Windows: C:\Users\[user name]\AppData\Roaming\Adobe\Lightroom\Preferences\Lightroom Classic CC 7 Preferences.agprefs

       

      Open the one of the following files in a text editor

      • macOS: com.adobe.LightroomClassicCC7.plist
      • Windows: Lightroom Classic CC 7 Preferences.agprefs

       

      Change (od add) the line useAutoBahn = true to useAutoBahn = false.

      Save and close the appropriate file 

      Restart your computer and launch Lightroom Classic.

       

      Please note: 

      (Windows) Some of the folders you're looking for could be hidden. To view them, choose Start > Control Panel > Appearance and Personalization > Folder Options. In the Advanced area of the View tab, make sure that Show Hidden Files and Folders is selected, and then click OK.

      (macOS) The user Library file is hidden by default on Mac OS X 10.7 and later. For temporary access to the user Library file, press Option and choose Go > Library in the Finder.

       

      Is your system up-to-date? Do you have installed all recent updates and patches for the operating system and the device drivers, especially the graphic driver. If you have a NVidia graphic card installed, make sure that you are using the recent Studio version of the driver, not the Game Ready version.

       

       

      My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 25H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 8 - PureRAW 5 - Topaz Photo
      K
      Katalin5ED1Author
      Known Participant
      February 14, 2025
      Hi there,

      There is no error message. I just want to open LC and it does not launch,
      scrolls a bit and happena nothing. But when I want to remove the program I
      receive a message, that I should close the program before I can remove it.
      The system thinks its open but its not.
        AxelMatt
        Community Expert
        AxelMattCommunity Expert
        Community Expert
        February 14, 2025

        Do you have tried the steps that I've mentioned?

         

        My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 25H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 8 - PureRAW 5 - Topaz Photo
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