HTTP Error 401.3 - Unauthorized

Question

I am getting this errror in my newly created website in Windows 7 and IIS 7.5. I created an SSL certificate and done binding new website.

HTTP Error 4

Answer 1

I had the same issue, ensured my DefaultAppPool was running under ApplicationPoolIdentity and the DefaultAppPool had permissions to the folder, but some files still didn't load.

Turns out my problem was that the anonymous authentication user was set to someone else instead of ApplicationPoolIdentity

Screenshot