Extra Hard Drive Partition?

[sargo34]

So I upgraded to windows 10 and have decided it's time to face a problem I've had for a number a months. 

In my system I have 3 physical drives, an SSD for my OS and programs, a 1tb HDD for my media, and a 500gb HDD for unsorted files. 
Unfortunately when formatting to install windows on one of the HDDs in the past I had to enter some command prompts to format it in a certain way and allow me to install windows. (I have no idea what I've done  :unsure: ). 
 Currently windows says I have 5 drives installed...
C;        57.6GB free of 118GB       - My ssd for programs and OS       -    120GB Samsung 840 Pro
D;         80.2GB Free of 465GB      - My downloads and unsorted drive,      -   500GB WD HDD
F:          41.7GB Free of 931 GB     -  My Media drive.                              -!TB Seagate HDD
And now the mystery Partitions  
System Reserved E;                            55.4MB Free of 99.9MB      ??????
System Reserved G:                           91.6MB Free of 349 MB        ??????

While simply seeing these drives isn't a problem it's the fact that I believe They're causing problems when it comes to my computer booting up. When I boot up my computer insists on booting to a blue screen with 1 of 2 things. A simple bluescreen with an error code or, a system restore type option asking if I want to try to boot into windows 8 or 8.1 Pro. So this is where the problem really stems from. In my BIOS no matter how many times I change my setting to boot from the SSD and save my settings it tries to boot from one of these other drives. So the only way to boot into a working OS right now is to override from the BIOS.

Along with the Drives listed above I have a MSI Z97 Krait Edition Mobo and am running a 4690k with 8GB of RAM. 

My bios is set to boot from UEFI + Legacy 
 And if I set it to just UEFI the only option is "Windows Boot Manager" which leads to one of those blue screen boot fail.... Anyone have any idea whats going on or how to fix it ? 

[EposVox]

Those aren't anything to worry about, those are exactly what they say - system reserved partitions. Reserved for Windows installation.

You can go into your Disk Manager and remove the drive letters from showing in the This PC/My Computer window, but they're not going to be what causes your boot trouble.