@thheblack I think the same, the problems is irrelevant to Windows version or its update. At the end and after many trials, I messed it up so badly that I wasn't even able to install 102. I couldn't make the necessary log file to send the opera developer team, maybe if you can still generate the log you can share it with them and hope for the best.
Finally I downloaded the Opera GX, online installer, and it installed without any problem.