After five year experience you should know that "Copied files & renamed Calibre book folders" is a no go
Run calibre in debug mode for getting a better error description and post it here:
calibre-debug -g.
For saving the log directly to a file you can modify previous command to:
calibre-debug -g >calibre_error.log
Please take a look to the manual, see:
https://manual.calibre-ebook.com/faq...ing-on-windows and check if this will help you.
Mainly there was going something wrong due to the installation where a AV/FW prevent calibre to finish the installation or stop calibre to run/access parts of the program files.