I finally decided to try uninstall again. This time it would not uninstall, it was clearly there but Windows couldn't find the location to uninstall it. I tried all the steps recommended to get it to uninstall but none of them worked. I ended up resetting my laptop, wiping out most of the programs but saving what I needed (documents, etc.).
After that I downloaded Avast One and ASB again and it all works perfectly, including Bank Mode.