how to stop others to access some websites ? or stop access to some adult websites ?

IF you want to block access to some adult website from your computer the follow above trick.

Suppose you do not want your friends to access the website ‘www.some-adultwebsite.com’,

just add the line ‘127.0.0.1 www.some-adult-website.com’ at the end
of the fle ‘hosts’ found in ‘C:\Windows\system32\drivers\etc\’.

You can open the file using Notepad. If you ever need to access that website later, just delete the line or add a semicolon to the beginning of the line.
Similarly, you can add as many websites as you want to block your computer from accessing.