Here is my problem.
I have lost my Win10 password and in search of solutions plugged in the hard drive with the Windows10 into another machine with another OS. However, I discovered that I am unable to change system files, even as an administrator or root. There are writable files on the disk, so I think it is some feature of NTFS file system. Also, unwritable files are readable, so they aren't encrypted. But shouldn't another OS have the whole disk writable? How is this possible and how to remove the write protection? I have tried editing files in Windows\System32\ on WinXP, Win7 and Linux. Thank you for the answer.
