Hi, I installed an internal 3tb Hitachi hard drive into Windows 10 64-bit. It shows total space in Disk Management as 2794.50 GB (correct). However, I then highlighted every file on the drive (I made sure the hidden files box was checked) and it shows 1.77 TB used (seems correct too). However, in my computer, it shows in Disk Management only 400GB free. I clicked properties in Disk Management and it shows 2.33 TB space used. Shouldn’t there be almost 1 TB free, not just 400GB??? Why is there a discrepancy. I know it is 1.77TB really not 2.33 TB. Please help! Thank you so much in advance!!!