How do i unblock facebook from my computer?

[Shamique]

Follow this steps..

Open Internet Explorer and then in the Menu Bar click on Tools → then click on Internet Options.
In the Internet Options pop-up box, click on the 'Content' tab. In the Content Advisor section, click the Enable... button. Note if Content Advisor has already been enabled you will have to click either the Disable or Settings button, and then enter the content advisory password.
In the Content Advisor pop-up box, click the 'Approved Sites' tab. Now enter in the website address you would like to block, then click on the 'Never' button, then click OK. To block a website completely you need to put * in front of the domain. For instance, to block all pages from youtube.com, you would type *.youtube.com
Once you've added all the sites/pages you want to block, then click on the 'General' tab within the Content Advisor pop-up box and then check 'Users can see websites that have no ratings' .
Now click on the 'Create password' button, and enter in an easy to remember password (I would also recommend you enter in a hint for the password as well, so you don't forget it). Keep in mind that if you skip this step, without creating a password, you will still be prompted to create a password.
Click OK on the Content Advisor pop-up box, and click OK once all pop-up boxes are closed.

That's it!