@Jerry12302 Nice.
Not sure if it'll help, but you can try using Process Explorer to see if you can find any more info on that open conhost process. For example, in Process explorer, you can right-click it and choose "properties" and look through all the property tabs. You can also right-click a column header in Process Explorer, choose "Select columns" and choose to enable the "Autostart" to see if the process was starting from a key in the registry that you missed.
It's possible that something just did a:
start "" "https://www.bing.com/"
command though, which might not show much info even in Process Explorer.
Hopefully you can eventually figure out the cause so you can put things back to normal with the command prompt config.
