I recently had this message pop up after trying to create a back up of 'C' drive using Macrium Reflect. I needed to do this because I had and still have the red cross flag on task bar saying 'Check your backup'.
I used Windows 7 back up to do this but the message still persisted.
Anyway, I created a back up on an external disk via USB3 enclosure (Inatek). (Still have the same message)
Thence upon restart I had the above message on boot up.
I used the WinRE repair and all seems OK, but I did get a message saying I was running out of disk space.
The presumably, boot sector now named 'G' drive is 100MB.
Is this sufficient for the purpose?
I tried to use MiniTools partition wizard to extend the volume but it said the minimum it would extend it would be 6GB (approx). Should I accept this size?
I attach screenshots of the current drive configuration.
Any help much appreciated.