Hello. I have two disks in my computer, both with one partition. One is Windows 10 and the other is Windows 7. I wanted to make the W7 not have access to the W10 disk (the other way around, yes). So, being logged in to W7 in the W10 disk properties (in this case D) from the security tab, I completely blocked access to it for everyone, and the disk was blocked as I wanted. The problem is that after returning to the W10 from its level, I also do not have access to its own disk, which is systemic after all. I have no way to unlock it now because none of the systems has access. What can I do now without formatting it? Please help...