I buy New laptop on 17th June 2013, on 19th June I have uninstalled Macfee & Installed the Symantec Antivirus After installing System is not booting its showing need to recover while booting its show Dell Logo it taking long time.

I have the disk but it does not go where the above stated. after a few clicks .. tryunbg safe mode and othe choices... it eventually goes back to this scree __

What cable connection are you using? Try to remove the cable at the back first then run an Auto-Adjust. If no go, you can do a Factory Reset on monitor.