Start-Up Removed Passoword

[Joaodestroyer]

I logged in to my PC today, and realized something small enough to easily miss. For about a month or so my PC, on start-up, has not asked me for a password to sign in. What do you think caused this? How can I fix it? Thanks a lot.
P.S.: Extra info. It is a house network, not in an office place. I did not play with the password settings at all. Thank you in advance.

 

[ThatVietGuy]

Sign-in to... your wireless network?

Usually Windows saves the password so that you don't have to keep entering your password.

 

[noidea_77]

https://technet.microsoft.com/en-us/magazine/ee872306.aspx

 

[Ubrales]

Sometimes, Windows does strange things. Just add a password if you feel you need one. Personally, I don't have any passwords for login to Windows. No password, nothing to remember! Of course, my email accounts and other accounts have robust pass-phrases.

 

[Joaodestroyer]

I already solved this a while ago. I meant lock screen password btw, not internet password (sorry I was not specific enough). Thanks for the answers, though!