I am using an external USB disk with 3 partitions: the 1st partition is plain NTFS, and 2nd and 3rd partitions are encrypted using TrueCrypt7.1.
Using WindowsXP everything works perfectly. Within XP's "Disk Management" the two encrypted partitions are BOTH listed as "Primary partition" each one is marked as "Healthy" with a drive letter assigned to it (and whenever I go back to WinXP - see problem below - the disk still works fine, i.e. the below problem seems to be caused by the OS and not by some disk corruption).
But when booting with Windows7 on the same machine, the 2nd partition is no longer accessible in TrueCrypt: The TrueCrypt partition selection dialog will only show partitions 1 and 3 but partition 2 is NOT listed - and it cannot be used by directly inputing the path in the input field either. For some reason Windows7 treats the partition differently and when looking at the respective "Disk Management" screen, Windows7 lists all three partitions BUT the 2nd partition is no longer listed as a "primary partition" NOR does it have a drive letter assigned to it. (for some reason the 3rd partition is still marked as "primary partition", it has a drive letter and it still works in TrueCrypt..) => the same problem also seems to exist when using Win10
Any ideas how to fix this Win7/Win10 issue without damaging the existing TrueCrypt partition?