I was sympathetic to the "many headaches, different problems, and scenarios" Scytale referred to.
The installer doesn't allow the backup to be skipped, at least in any way I noticed. Regardless, if it has problems doing a backup it should come back and display something instead of just hanging.
The site that had the console issue is no longer using ESET. WE solved the problem, in the best manner available to us.
I was successful getting the last PC I was working on to upgrade - I R&R the software. Today I get an email from Google that GSuite sync for Outlook is incompatible with ESET. Yeah, there's probably some tweaking that can be done. But I have to do it for each and every PC. It is cheaper for the company to just abandon ESET and go with a competing AV product.