Windows 10: "Disk has been surprised removed"

Hi, I am randomly getting these warnings in event viewer. I am not sure why this is happening but this has been happening for a while now and it seems to happen every few hours.
I only have 3 internal drives (2 HDDs & 1 SSD) and 5 partitions total (screenshot of disk manager) but the warnings often get up to disk 12 (see screenshot below) so it doesn't even make sense. I also don't have any external drives or flash drives connected to my PC.
So... should I be worried or just ignore it?
Here are some screenshots of the event viewer logs:












:)

 

Can't safely remove external disk

In reference to the steps of your suggestions:

• The issue is specific to the particular disk and it started after I've used the disk to save the System image backup (created with the Control Panel > File History tool).
• I didn't disable any windows Service. I'm just wondering if there is any to disable.
• Safe boot with networking, or clean boot doesn't resolve the issue.

Thank you.

 

Remove account

I suggest you backup your personalized files first before removing the account.
To delete an account, follow these steps:

1. Press WIN + X keys and click Command Prompt (Admin) from the menu.
2. Type the following command and press Enter. Replace test with the name of your sister's account. Code:

 

Disk 3 has been surprise removed / Windows 10

I see an issue with the display of the disks in that there are 3 disks but the numbering is 0, 1 and 2. Used to be with the PATA drives one had to plug the data cables into the motherboard in a certain manner but the newer SATA cables can be plugged into any of the SATA ports on the motherboard and the OS installed as the builder desires.

Disk 2 listed appears to be an External USB drive, perhaps it is a USB port issue?