HELLO ...I am new to prestashop.com forums ....... now i trying to install prestashop but also i have same problem in 2nd step ........but i have successfully resolve PHP settings problem and now trying to solve error in Optional set-up... Optional set-up PHP settings (modify via your PHP admin software): Allowed to open external URLs PHP register global option is off (recommended) GZIP compression is on (recommended) Mcrypt is available (recommended)