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LRC not opening/can't uninstall

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Hello there,
I'm looking for some help with LRC. All of a sudden, it won't open. I click on it, it loads for a bit - then nothing. I can also not uninstall it! I have tried the following:

- restarting the computer multiple times

- installing it again
- uninstalling (it won't)
- uninstalling it by uninstalling Adobe Cloud first (still won't work)
- uninstalling with the Adobe Clean up program as per tutorial (will uninstall everything BUT Lightroom Classic)

Please help! The regular Lightroom programm works, but I need Lightroom Classic for my work.

I'm using Windows 10.

Windows

DdeGannesCorrect answer

Community Expert

From distant memory, I may have closed LRC a couple of days ago without allowing it to back-up. Maybe this influenced the problem I now have somehow.

I do not think that should be responsible for what you are experiencing.

My thourghts are the problem is directly related to your GPU driver and that creates the Lock file, which remains in place preventing the launch of the Catalog.

First I would disable the GPU acceleration, even if it requires you do that manually, all the details were provided in Alex first response. And leave it disabled for the time being.

Next check that there is no Lock file next to the Catalog file, if there is also a .WAL file present next to the Catalog file delete it also.

Next double click on the Catalog file to boot.

Let us know if that works.

P.S. If there is a .SHM file present in the Lightroom folder nex to the Catalog delete it also.

Regards, Denis: Laptop Win 11, ver 24H2, LrC 15.4 PS 27.8;

K

KirstinDevensAuthor

Participating Frequently

Ok everyone, I don't know what exactly did the trick here but all of a sudden, my LR is opening up! Yay!

I just saw another .SHM file pop up in my LR folder which I deleted (again). And tada, LR opens, after getting the warning below. I created a new catalog and I'm now good to go again.

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K

KirstinDevensAuthor

Participating Frequently

Thank you so much everyone, all your answers helped tremendously!

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GoldingD

Legend

Are you sure that the catalog that you are trying to open is the one in your screenshot? The one with the lock file. Try double clicking on the .lrcat file.

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DdeGannes

Community Expert

Ok this may have relevance, the LRC Catalog is the one from the Author’s screen capture the one named Lightroom Catalog with the blue LrC logo.

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Regards, Denis: Laptop Win 11, ver 24H2, LrC 15.4 PS 27.8;

K

KirstinDevensAuthor

Participating Frequently

Thank you both, good points. I have tried selecting the right icon for opening the LR Catalog, but that won't open also.

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DdeGannes

Community Expert

Just a thought out of the box, sometimes two driver updates for your GPU card are offered for windows system, make sure you are not using the one enhanced for Gaming.

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Regards, Denis: Laptop Win 11, ver 24H2, LrC 15.4 PS 27.8;

K

KirstinDevensAuthor

Participating Frequently

Good point as my laptop is a Gaming laptop!

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DdeGannes

Community Expert

On other point here is GPU acceleration in LrC really only shows any noticeable improvement if you are using 4K or 5K large monitors.

However you can check your experience if you are able to get it functioning. Concentrate on getting your Catalog launched and functioning first.

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Regards, Denis: Laptop Win 11, ver 24H2, LrC 15.4 PS 27.8;

A

AxelMatt

Community Expert

It's just a thought: maybe your catalog is faulty.

Please try the following: Press and hold the Alt key while you starting Lightroom. In the Select Catalog dialog box, click "Create a New Catalog" and see if Lightroom starts.

More infos you'll find here: Troubleshoot corrupt catalog (adobe.com)

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My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 26H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 9 - PureRAW 6 - Topaz Photo AI

K

KirstinDevensAuthor

Participating Frequently

Thank you Axel Matt, I tried this too! It didn't work but I aprecciate your time. 🙂

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DdeGannes

Community Expert

One other thought could you post a screen capture of your Preferences > Performance tab, so I can see what info is displayed.

One other question, when you deleted the lock file and tried to reboot have the lock files reappeared?

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Regards, Denis: Laptop Win 11, ver 24H2, LrC 15.4 PS 27.8;

K

KirstinDevensAuthor

Participating Frequently

Thanks heaps Denis,
I cannot seem to be able to locate the Preferences folder anymore, I think the screenshot posted is where I found it before!

And to answer your other question, yes I deleted the two .Lock files you pointed out, tried to reboot with no luck, then ended the LCR background process from the Task Manager.

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DdeGannes

Correct answer

Community Expert

From distant memory, I may have closed LRC a couple of days ago without allowing it to back-up. Maybe this influenced the problem I now have somehow.

I do not think that should be responsible for what you are experiencing.

My thourghts are the problem is directly related to your GPU driver and that creates the Lock file, which remains in place preventing the launch of the Catalog.

First I would disable the GPU acceleration, even if it requires you do that manually, all the details were provided in Alex first response. And leave it disabled for the time being.

Next check that there is no Lock file next to the Catalog file, if there is also a .WAL file present next to the Catalog file delete it also.

Next double click on the Catalog file to boot.

Let us know if that works.

P.S. If there is a .SHM file present in the Lightroom folder nex to the Catalog delete it also.

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Regards, Denis: Laptop Win 11, ver 24H2, LrC 15.4 PS 27.8;

K

KirstinDevensAuthor

Participating Frequently

Also another .LOCK file appeared in that folder, after deleting the first two. I deleted that one also but no changes. LCR is still running as a background process according to Task Manager.

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K

KirstinDevensAuthor

Participating Frequently

(Thank you, Denis)

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K

KirstinDevensAuthor

Participating Frequently

Thank you DdeGannes,
I have just followed your advice and deleted the two LOCK files. Neither the Catalog nor LRC will open, still. Seems like my case is a bit of a tougher nut to crack...

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DdeGannes

Community Expert

OK, if Lightroom Classic shuts down in a normal way there should be no Lock files present in the folder.

The screen capture shows two lock files present in the folder and they will prevent Lightroom Classic booting, I would suggest you try deleting those two “dot LOCK” files.

Next double click on the Lightroom Catalog file it’s the one with the blue Lightroom logo and ends .lrcat extension. That should boot LrC and open the Catalog file.

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Regards, Denis: Laptop Win 11, ver 24H2, LrC 15.4 PS 27.8;

K

KirstinDevensAuthor

Participating Frequently

Thank you for your reply DdeGannes, and please see image below: