First of All if you want to know what WampServer is Click Here.
Now the Error:
When you try to open Wampserver Admin panel you will be able to do with 127.0.0.1 but with Localhost it will give you the following error.
How to fix WampServer – Forbidden – You don’t have permission to Access / on this server:
1. Open the WampServer and let it go green.
2. Left Click on the Wampserver icon and Open httpd.conf
3. Find and change the following two locations from Deny from All and Allow From 127.0.0.1 => Allow from all.
4. Save the changes and restart your wamp server.
Every thing will be working smoothly.
You can even see a video tutorial step by step below.
If you still have questions feel free to ask us in Comments below or Contact form.