I deleted first "earlier Windows versions" and the boot manager still prompt me to chose, after that I deleted Windows 7 entry from my Windows 7 install, as you already said and then I cannot boot my OS so I insert my USB and repaired the mistake, so I got my Windows 7 install back but the "Windows Boot Manager" still ask me to chose from the only option available "Windows 7 entry" installed by me, after 2 or 3 restarts I formatted the HARD DISK properly and did a fresh install and everything is in order now, NO BOOT MANAGER THE PROBLEM WAS FROM "WINDOWS 7 SYSTEM REVERSED PARTITION", I THINK THERE WAS STORED SOME FILES FROM MY PREVIOUS WIN7 INSTALL, AS I DIDN'T DELETED, FORMATTED AND CREATE IT AGAIN AS I DID THIS TIME. THANKS