P: Desktop: needs to restart to clean?

to add - I also uninstalled all my adobe apps and uninstalled creative cloud - reinstalled creative cloud and only installed Lightroom - unfortunately still getting the same error

jumping on here after being advised in this post: https://community.adobe.com/t5/lightroom/recurring-restart-message-that-doesn-t-let-me-use-the-app/td-p/11636085?page=1

Im on Mac and facing the same problem - I uninstalled and reinstalled twice, I reset preferences, I deleted the cache, I signed out and signed back into creative cloud; all to no avail - any help to resolve this would be much appreciated. 

Pictures are being saved locally not to the cloud, so no syncs pending. 

Oh Poo.
Well I am now out of the Adobe loop - as I have previously purchased outright my copies of Photoshop (6 versions) and Lightroom (all the updates to 6)

I am not prepared to now go down the subscription software route so it looks as though this is the final parting of the waves for me and Adobe.

I have used the Adobe products for about 25 years and unfortunately will now have to say goodbye after investing £1000s in software and countless hours in acquiring the skills to use it.

Not very happy.

Are you fully synced from your desktop to the cloud or do you have syncs pending?

@Pixcels which Lightroom version are you running? The message about the installer needing an updated makes it sound like LR6 or earlier, which won't install on Big Sur because the installer has 32-bit components. You'd need one of the current versions on a subscription.

I too tried that and the previous solution, the problem still exists

Hi again Rikk, we tried that, still the same problem after uninstalling and reinstalling Lightroom following the instructions above. Any other ideas?

Thanks for your help.

Next step is to perform a clean reinstall of the application.

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

Thanks @Rikk, I have tried this but am still stuck in the same loop. Any other ideas?