Windows 7 Bootup / HDD issue

Thanks for the tips so far!

When I booted into Ubuntu Pendrive to give it another go before reinstalling Win7, the previously unreadable disk is suddenly readable now, with another previously readable disk now unreadable!

Ubuntu's disk manager was able to identify those two disks, yet unable to identify the filesystem... How strange is that!

Anyway, I decided that the physical disks must be alright, and the issues must be of logical nature. With that, I formatted my C: and reinstalled Windows 7. This seemed to solve the "stuck at loading screen" and I was able to get all my data back.

Yet, during the process, Windows 7 did not load my 2TB backup drive, and I had to go into Disk Management to configure it... All I had to did was map a drive letter to it. However, after that, I noticed that the drives' status are quite strange. The 2TB backup drive is indicated as "system" and "active", as seen in the image attachment...
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(when I right click on the 2TB drive, the option to format it was grayed out. )

From my research, the "system" status should be on my C:\...
So my questions now are...
Should I be worried about the current status of the drives?
If these status may cause havoc in the future, how do I fix them?

Thank you again for the help!