Steps to Make Facebook Private

The first thing you should do is make sure your default sharing option on Facebook is set to Friends and not Public. You need to change it so only your friends can see your posts.

Using Privacy Settings and Tools

To get to the Facebook Privacy Settings and Tools screen:

1. Click the arrow in the top-right corner of any Facebook screen.
2. Click Settings in the drop-down menu and then select Privacy in the left panel.
3. The first item listed is Who can see your future posts? The sharing option, which appears to the right of the category, probably says Public, meaning everyone can see everything you post by default. To change the default so only your Facebook friends can see what you post, click Edit, and select Friends from the drop-down menu. Click Close to save the change.

That takes care of all future posts. You can also change the audience for previous posts on this screen.

1. Look for an area labeled Limit the audience for posts you've shared with friends of friends or Public? 
2. Click Limit Past Posts and in the screen that opens, click Limit Past Posts again.

This setting changes all your previous posts that were marked Public or Friends of Friends, to Friends.

Facebook makes your friends list public by default. That means everyone can see it.

On the Privacy Settings and Tools screen, change the audience next to Who can see your friends list? Click Edit and make a selection in the drop-down menu. Select either Friends or Only me to keep your friends list private.

You can also make this change on your profile page.

1. Click your name at the top right of any Facebook to go to your profile page.
2. Click the Friends tab under your cover photo.
3. Click the pencil icon at the top of the friends screen and select Edit Privacy.
4. Select an audience next to Who can see your friends list?
5. Select an audience next to Who can see the people, Pages and lists you follow?
6. Click Done to save the changes.

Your Facebook profile is public by default, which means it is indexed by Google and other search engines and viewable by anyone.

Privacy experts recommend that you review the profile settings for each item in your profile.

1. Click your name at the top of any Facebook screen to go to your profile.
2. Click the Edit Profile tab that appears in the bottom corner of your cover photo.
3. Unclick the boxes next to the information you want to remain private. This includes boxes next to education, your current city, your hometown, and other personal information you've added to Facebook. 
4. Review the sections under your personal information and edit the privacy sections of each one by clicking on the pencil in the section. Sections may include Music, Sports, Check-Ins, Likes and other topics.

To see what the public sees when they visit your profile, click on the More icon (three dots) in the bottom right corner of your cover photo and select View All.

If you prefer for your entire profile to be completely invisible to search engines:

1. Click the arrow in the top-right corner of any Facebook screen. 
2. Click Settings in the drop-down menu and then select Privacy in the left panel.
3. Next to Do you want search engines outside of Facebook to link to your profile? select Edit and uncheck the box that allows search engines to see you on Facebook.

Facebook provides audience selectors that allow users to set different sharing options for each piece of content they post to the social network.

When you open a status screen to make a post, you'll see the privacy setting you chose to serve as the default at the bottom of the screen. Occasionally, you might want to change this.

Click on the button with the privacy setting in the status box and select an audience for this one specific post. Options include the usual Public, Friends, and Only Me, along with Friends except, Specific friends, Custom, and an option to select a Chat List.

With the new audience selected, write your post and click Post to send it to the selected audience.