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