RE: You make it sound so easy!! NEVER goes as described.......
Since you mention the 29th of July I assume you are frustrated about a Windows 10 Upgrade? What model of Dell do you have? Press [Windows] and [ r ] and type in msinfo32 and press [Enter]. Let us know the OS Name, Version, BIOS Version/Date, Processor and Installed Physical Memory.
Tech Enthusiast and Author of the Unofficial Dell Windows Reinstallation Guide