Hi Arun thanks for the additional assistance and apologies for the delay in getting back to you. As suggested I've checked that the file system is fully extended from the command prompt and have received positive confirmation via the command prompt with the following message "DiskPart successfully extended the file system on the volume".
Unfortunately having rebooted the VM I still have a mismatch in utilised disc space between what is being displayed in Windows Explorer and the summation of the associated sub directories.
As an aside in case the space was being occupied by temporary Windows files I've created and run a batch file to capture and delete files with *.tmp *.dmp *.bak *.err *.old *.ac$ and ~*.* extensions. Although this has recovered some of the missing space (approximately 0.5 GB) it hasn't made much of a dent in the 96 GB I'm currently unable to access.
Last edited: Aug 24, 2017