The answer to question one is I added those drives at different times. Originally, I purchased my 2Tb drive over 11 years ago. Something went wrong and was suggested that I should use another drive specifically for my programs (currently drive G) and use my 2Tb drive for my data. When I managed to purchase a SSD, I did. I moved my operating system and my programs from my G drive (which was C) to my SSD drive, which is now my C drive. Along the way, I had to format the drive before it could be used. Microsoft "told" me I had to partition the drive so can be useable, hence the System Reserved portion. Besides, everything was running smooth for the longest time until two of three weeks ago! WHAT HAPPENED!!??
I'm using a MSI system, mother board Z370 SLI Plus with an i5 8600k. I purchased it about 2 years ago and installed the drives. Updated Windows 10 last time updating was called for.
If you think it's best to follow your instruction. I'm with you. I copied this page and sent it via email to my cell. I hope it works... :-|