Hi JS4. I'm Greg, an Independent Advisor.
System images rely on Shadow Copies which may be removed if you also have System Restore enabled on that data drive.
This is a reason why I would only enable System Restore on C, so it's always available to go back before a problems. It is your first line of defense.
For your data drives, use ordinary backup methods including File History if you want so that it creates Previous Versions on the Properties tab of each file and folder: https://winaero.com/blog/restore-previous-versi...
I would also not use WIndows Imaging which is no longer supported or developed, is not flexible and often won't work for functions all other apps have. Instead I would use free Macrium Reflect, which is the choice of all experts because it is flexible and just works. More here:
https://www.howtogeek.com/howto/7363/macrium-re...
http://www.ghacks.net/2015/08/29/the-best-way-t...
http://knowledgebase.macrium.com/display/KNOW/C...
Feel free to ask any questions. Based on the results you post back I may have other suggestions if necessary.
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