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Participant
November 10, 2025
Question

Lightroom Classic does not open and throws and exception since the last update

  • November 10, 2025
  • 1 reply
  • 251 views

Hi,

I have a problem with the new Lightroom Classic update (and Lightroom as well).
Since updating to v15, when I try to open the program, it doesn't launch, but if I open the task manager, I see the process active and it consumes more and more memory until, a few minutes later, an exception message pops up with the following text: "Exception Processing Message 0xc0000005 - Unexpected parameters".
If I revert to the previous version, it works fine.
I tried uninstalling Creative Cloud and reinstalling it again, but the problem persists.

1 reply

Rikk Flohr_Photography
Community Manager
November 10, 2025

I do not see that you've installed the update 15.0.1 released earlier today.  Can you install that update using the Clean Install procedure and report back if you are still seeing the issue?

 

Clean Lightroom Install Procedure

Close Lightroom

Restart the computer

Use the Adobe Creative Cloud App to uninstall Lightroom

Restart the computer

Install Lightroom via the Creative Cloud App without launching any other programs.

Restart the computer

Launch Lightroom

Wait 5 minutes

 

Rikk Flohr: Adobe Photography Org
kariv60355282
Participant
November 14, 2025

Have been using several years, but not seen something like this. It's just in increasing memory. Maybe should remove previos catalog and take older backup somehow. Maybe raleated to Window 10 Nowember update (ESU), but after removing it still the same issue.

 

kariv60355282
Participant
November 15, 2025

Removed "AppData\Roaming\Adobe\Lightroom\Preferences" folder and issue disappeared. No idea why that didn't work and Light was not able to start.. Just need to tune some settings manually