I just thought I would add here for anyone having the same problem that this process is fully reversible by using windows disk management utility to delete those 2 partitions marked as RAW and extending the original partition back into it. I then did a factory restore on my laptop and it was back in it's out of the box condition. I then went through the process of dual booting again. I am happy about this flexibility to return it to it's factory state just in case I want to sell my laptop in the future.
I did notice that I hadn't actually installed Ubuntu on the filesystem. I'm not sure where it went but the 128 GB partition was empty. I hadn't actually set a mount point of /
I'm guessing that is what the E: partition was, I believe that may have been where Ubuntu was installed. This time, however, I have ensured to declare the 128 GB partition a mount point and also created a separate partition 8 GB from within that partition as my linux-swap
Happy Dual Booting UEFI Laptops People