Lightroom 5 full DVD original lost serial ! Help!

​@Per Berntsen 

Thanks for answer. 
I reinstall Lightroom and my other app in a new hard disk , because old crash and it’s not accessible in any way.

For this I can’t search and read file with serial 

​@Per Berntsen and ​@dj_paige 

you’re right to say see on adobe account , but I can’t find anything on it , purchas was in 2014 ( Lightroom 5 full DVD ) but I don’t render where , and I don’t remember if I make registration

I’ll try to write to adobe 

thanks

I need to reinstall Lightroom 5 full DVD version purchased years ago in old pc used for photo and other , cause half crash and not accessible

Reinstalling is not likely to fix the issue, in fact, reinstalling rarely fixes anything.
If you describe in detail the issues you have with LR 5, we might be able to help you.

If you’re using a Windows PC, the serial number can be found in C:\ProgramData\Adobe\Lightroom.
Look for a file named something like Lightroom 5.0 Registration.lrreg.
Open this file in a plain text editor like Notepad, and you’ll find the serial number.

Go to account.adobe.com, log in, click on “View Billing History”, click on Products (on the left). If you bought from Adobe, or bought from somewhere else and registered with Adobe, your serial number will be shown there (my Lr 5 serial number is there).

Advice: keep all serial numbers (not just Adobe) in a text file, stored in the cloud, so you can always find your serial numbers if your computer crashes.

If you bought directly from Adobe, or if you bought somewhere else and registered with Adobe, your serial number is on the Adobe web site. Go to account.adobe.com, sign in, click on “View Billing History” and on the left click on Products. My Lr 5 serial number is still there.

Advice: you should be storing your serial numbers for all products (not just Adobe) someplace that you can find them again if you need them, such as a text file stored in the cloud (so if your computer crashes, you can still retrieve the text file).