Lightroom will not open on WIndows

[KBStudio]

Thought I had this issue resolved.  Two weeks ago I, Uninstalled Photoshop Beta, Photoshop, and Lightroom Classic.  Threw away their preferences and reinstalled Photoshop and Lightroom Classic.  Painful but after reconstructing my workspaces, I was back to normal Lightroom opening without issue.  This was two weeks ago.  Today, as I was about to start a major Post-Production job for a client, Lightroom will not open.  My trick of opening LRC from the catalog, didn't work.  Lightroom will start working as shown in the Task Manager, but will not open on the montiors.  After a few minutes, it just stops, as shown in the Task Manager.  Photoshop opens without a problem.  Over the past two weeks, Lightroom would arbitarily shut down.  Annoying, but I could reopen without issue.  So the bug is still present.

I am running LRC 13.5, Photoshop 25.11, on a WIndows 10 Pro 64bit Version 22H2 machine.  

Is Adobe even looking into this on going issue?

[GoldingD]

And you checked for a lock file that did not get deleted?

As would be the case if during the previous us LrC crashed  or was forced to quit.

[KBStudio]

And how does one determine if a file is locked?  What files would be locked and uninstallable?

[GoldingD]

https://helpx.adobe.com/lightroom-classic/kb/lightroom-error-catalog-cannot-be-opened-lrcat-lock.htm...

[KBStudio]

Unfortunately, removing the Lightroom Catalog-v13-3 ircat.lock did not solve the problem.  Lightroom still will not open.

[GoldingD]

Give ADOBE a chat. when you do, be assertive in requesting a Adobe Tech calls you or joins the chat.

Keep lots of notes as so you can tell us what they resolved.

Typically bring up an Adobe site, and clcik on the Contact button:

One such site:

https://www.adobe.com/about-adobe/contact.html

[Rob_Cullen]

And have a look at this forum thread where I made suggestions to change file priority- with modifications in added posts.

PRIORITY HIGH IN TASK MANAGER

[KBStudio]

Thanks Rob, but it doesn't seem to help.

However, I did discover that if I waited for 3:27 minutes, Lightroom would launch.  So, I started timing how long it took to lauch.  Longest 5:06 minutes and Shortest 2:56 minutes.  Believe or not I am happy.  At least I can get my work done for my clients.  Not thrilled with all the problems Lightroom has introduced into my workflow!

Hopefully, Adobe will not delete this reply as the did on the Post you suggested.

[KBStudio · Accepted solution]

It seems I solved my problem.  Nothing suggested worked, so I got to thinking maybe my catalog was too big for Lighroom Classic.  So I created a New catalog and populated it with all my commercial work.  I then Removed all the commercial files from of Original catalog.  The time it takes to open the Original catalog has dropped from 2-3 minutes to 33 seconds.  The Commercial catalog opens in 30 seconds.  So to those will huge catalogs, beware at some point it may take many minutes to open.

[JohanElzenga]

The bigger the catalog, the more time it takes to open. That is only logical. However, there are quite a few photographers out there that use catalogs with millions of images, without having serious issues.