Re: Problem while updating NVDA
Hello Hasan, and welcome.
In a situation like yours, where you sound like you have a very fresh Windows 10 installation coupled with a fresh NVDA install, is simply uninstall NVDA after downloading the NVDA 2020 installer, then reinstall.
Others will likely have other suggestions, and you may end up being asked to supply NVDA logs off-list by those who are able to dig deep under the hood of NVDA. Mine is the "quick and dirty" method.
I have had Add-On Updater get cranky on multiple occasions, but it generally has resolved itself the next time it determines updates exist and tries again. That's usually the next day.
Brian - Windows 10 Pro, 64-Bit, Version 1909, Build 18363
Science has become just another voice in the room; it has lost its platform. Now, you simply declare your own truth.
~ Dr. Paul A. Offit, in New York Times article, How Anti-Vaccine Sentiment Took Hold in the United States, September 23, 2019