Making A Windows Disc Complete With Updates

I am going to be reformatting all the laptops before resale. Now downloading all the updates is very frustrating, but I have been advised to use a piece of software called Macrium Reflect, which basically copies the complete hard drive, so you have a perfect back up.So my plan is to make a fresh install of windows, update Windows fully, and them make an exact image of that hard drive. What I then plan to do, is install this copy onto all the laptops (Using the unique windows key), which basically saves me wasting hours per laptop updating.My problem is, when you format a laptop, some drivers are already installed, where others are not. I do not know exactly what determines why some drivers are already installed and some are not, but anyway, if I took the complete image of the hard drive, of lets say a Toshiba laptop, then put all that data on to an Acer laptop for example, would I get conflict between already installed drivers?

By this, I would not install any manually downloaded drivers onto the Toshiba until after the image is taken, meaning the only drivers moved between laptops are the pre-installed ones.