Hi,

I buy two 3TB HDDs

Windows 7 (Vista & 8) will not back up to them..................... they use 4k sectors not 512

It cannot create a disk image

So I have to use third party software.....................

If you have micro$haft stock, my sentiment is a strong sell!

They have had this problem since Vista!, and are obviously not intending to do anything about it?.............. or are probably technically incapable?