A Laptop with two drives. The system drive a Samsung SSD M2. It has Linux Mint & Windows 10 Pro on it.
The data drive is 1TB with two NTFS partitions which are shared by both systems. Recently Sda1 is completely blocking Windows, but quite normal with Linux. Sda2 has no problems with either system. Both have identical settings in their permissions.

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Name:	DriveD-sda1.PNG 
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ID:	10559Click image for larger version. 

Name:	DriveE-sda2.PNG 
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ID:	10560.