All we need is an easy explanation of the problem, so here it is.
I want to make a bootable USB thumb drive to install Windows on my computer. I don’t want to use my old DVD to create an image and then upgrade to SP1, so I decided to download an untouched .iso file that already has SP1 in it. My question is this, is there a difference between these two files files?
dvd_u mean, is it somehow different from plain
dvd? Also will these work with my retail Home Premium key or do these work only for thoe with TechNet/MSDN accounts?
How to solve :
I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.
the u version is more recent according to this site
check this for details
U means it is updated with this hotfix, as per reading the link provided by daya
Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂