How to Block Websites on Computer Windows 10?
Step 1. Turn on your System, and type "Notepad" on the Start/Taskbar search box.
Step 2. When the "Notepad" option appears on the result, right-click on it and select "Run as administrator" to run the program with admin privileges. Click "Yes" if UAC (User Account Control) prompt turns up.
Step 3. From the Notepad program window, click on "File" from the menu bar, and select "Open". Browse the location: C:\Windows\System32\drivers\etc, and the host file.
Step 4. Click "Open" button to open the file with Notepad.
Step 5. After the host file is opened, place cursor to the bottom line and hit "Enter" to start a new line, and type 127.0.0.1 space website name.