UPDATE : I ran a gparted live CD and checked for memory errors, After 3 hours of testing it says No errors So, I booted my pc in gparted live and reformated all the drives, Looks like they are good.Now, I've removed the GPU, using 1 ram stick and replaced the CMOS battery, Windows is being installed atm. I'll post back IF it finishes without any error.
I have tried two - three versions of windows and everytime in mid of installation I'm getting this error. Saying "Files are missing or incomplete" [h=1]0x80070003[/h] What the hell in this world I'm supposed to do?
If you have any secondary PC then check the setup on it.I have seen people facing this issue and most of the time the problem was with the DVD burner.Since you are using a complete different way i.e the USB installation, I would suggest you to check the setup by installing it on a different PC or a Virtual Machine.