@george1421 OK, finally, was able to capture the image successfully. This partition /dev/sda4 apparently was the recovery partition so all efforts prior to this (IE hibernation settings, and running chkdsk on the os volume were not the issue). What fixed the issue was running:
ntfsfix -d /dev/sda4
Suggestion: would it be a good idea to test these dirty flags prior to running the lengthy imaging process so that perhaps we don’t have to do so much guesswork.