Unable to view SSRS reports

With this forum's help yesterday, I was able to install SSRS. However, I am facing the following issue --
When I clicked on ReportServer URL and Report URL, it asked me for credentials. While installing, I had chosen windows authentication. I have no password to login to my system. I tried a few things (changing the url and then changing it back again) after which it stopped asking for credentials but then I don't even see any reports :frowning_face:

I got a message of successful deployment while building the report from visual studio.

Have I broken something? How can I fix this?

I did figure out later that in my login credentials, I could have given the following (Still don't know whats the password)