Reinstall Lightroom 6.12 after crash - getting "Serial number already in use..." error

[Ladislav Serédi]

After fatal a motherboard failure of my notebook I am trying to reinstall my software to a new PC. Installed my legal copy of Lightroom 6.12 as well. After running it I'm getting the following warning:

Please note that:

- I legally own the product and registered it under my Adobe account after purchase.

- I'm unable to deactivate it on my old PC - the disk is severely damaged, can't run any installed app.

- Under my account I see no device where I could potentially deactivate a product.

My understanding is, that this problem can't be solved without intervention from Adobe representative. As in a reasonable amount of time I was unable to locate any reliable method to get in touch with Adobe support other than this forum, I am asking for their help here.

[AxelMatt]

You have to contact the Adobe Support by using this Chat link:  Be Signed-In here with your Adobe ID and allow cookies in your web browser.

Online Chat: https://helpx.adobe.com/contact.html?rghtup=autoOpen

Ask only for DEACTIVATION of Lr6.

If the agent can't do it, ask for a supervisor and persevere.   Deactivation is all they can help you with because Lr6 is discontinued and unsupported software.

[Ladislav Serédi]

IMPORTANT: The link from Matt is correct (thanks a lot!) but in Chrome the chat windows open button was invisible. I needed to open the link in MS Edge, open the chat, talk with some AI, get a real agent, and in a couple of secs = problem solved! Wow!