Seagate DiscWizard buggered up in Windows 10

FalseChristian

Diamond Member
Jan 7, 2002
3,322
0
71
I made the mistake of buying a 3TB Seagate Hard drive which my BIOS and Windows 10 Build 10547 only sees 2.2TB. I want that extra 746GB back! I payed extra for it. Anything I can do?
 

Iron Woode

Elite Member
Super Moderator
Oct 10, 1999
31,094
12,597
136
Quick facts about Windows and 3TB drives:

Windows 10/8/8.1/7 and Vista support GPT 3TB single partitions
Windows 10/8/8.1/7 and Vista can only boot GPT on systems with UEFI BIOS
Windows 10/8/8.1/7 and Vista can mount a GPT non-booting data drive
Intel RST device drivers before v10.1 do not support 3TB disk drives
Windows systems with Legacy BIOS and MBR boot drives are limited to 2.2TB partitions
Windows XP does not support GPT
Windows XP sees a 3TB drive as 800GB on boot or data drives
DiscWizard software can install a device driver which opens the full capacity of a 3TB. You can use it to create a second partition for the capacity above 2.2TB
your solution is bolded.