Hi Karl Scantlebury,
I have also face this type of problem, but my friend suggest me best tool to overcome this trouble permanently by the help of this application without any issue, so i recommend you if need to recover your hard drive data, so use this tool and get your all data in previous manner.
http://www.systoolsgroup.com/hard-drive-data-recovery.html
I have also face this type of problem, but my friend suggest me best tool to overcome this trouble permanently by the help of this application without any issue, so i recommend you if need to recover your hard drive data, so use this tool and get your all data in previous manner.
http://www.systoolsgroup.com/hard-drive-data-recovery.html