A little about my dual boot setup :
I am currently dual booting win 10 and win 8.1 .They both are on same disk. Whenever I boot an option shows up in windows bootloader - to select which one to boot . Something like this -
My problem (basically what I am trying to do)
I want win 10 c drive completely inaccessible from win 8.1 . If that is not possible then at least it's mounted in read only mode.
What I have tried/found out :
1.stop-windows-from-mounting-a-ntfs-file-system
Am afraid messing with attributes as suggested in this answer because it will create a huge problem when I will try to boot from windows 10
2.how-to-make-a-partition-on-external-storage-read-only-and-revert-to-normal
Same as above, suggests a attribute change