I am unable to sign in with Apple ID for iCloud on Mac
I was trying to sign in on my Mac with my Apple ID ( I even typed out my password) and “iCloud preferences wants to make changes to your account. Type your password to allow this” pops up. I don’t know the password and I tried to reset and but I couldn’t. Anything I can do to solve this?
[Re-Titled by Moderator]
MacBook Air 13″, OS X 10.11