Finally Solved the problem, Installed The Recovery OS from Dell Support Then Update to Anniversary
Windows 10 Anniversary Update Stuck Up @ Getting Ready i waited fir 12hours still at Getting Ready  Other Details using Clean install, bootable flashdrive  OS:From Media Creation Tool  BIOS:UEFI   Current OS: Windows 10 Home  Laptop: Dell Inspiron 15 5558  i7-5500U 
Windows 10 Anniversary Update Stuck