Agree with what TVeblen has mentioned. If you format partitions to <=2.2TB you should have no problem accessing with most any OS's (booting may be another issue though).
There's quite a bit of info on this stuff in that link I posted.
the first machine i put it into was directly into my main pc. i only loaded up win7. the drive was detected automatically. i then started formatting the drive for the first time at the full capacity of the drive. the formatting took around 7-8 hours. then it worked for a week. then i put it into an external drive enclosure which was plugged into winxp (seperate winxp machine from my dual boot system.) when i tried to put it back into my dual boot system. i tried to load up win7 as normal but windows7 boot failed. then i tried loading it up in winxp. winxp booted up but the drive wasnt working. i installed seagate discwizard for winxp and after re-partitioning the drive it worked. however. the drive isnt partitioned into 2 partitions of the same drive it seems to have been partioned into 2 100%'s of 2 drives.
but to answer your question simply. it worked fine in win7 until it was removed.
Likely the controller built into the enclosure wrote changes to the drive that w7 didn't like.
Not sure about that, but it's always a good idea to check those kind of specs when buying/using peripherals. They tend to bite at the most inopportune times.
I've hesitated buying drives greater than 2TB ever since they became available, for personal use or when buying for others, because of that 2.2TB limit.
I just took another (closer) look at you Disk Management screen shots. Here is what I see:
The ACTIVE partition is the partition that the BIOS looks for to boot an OS.
In the screenshot from XP it shows Disk 3 - Drive M marked as ACTIVE.
None of the partitions on Disk 0 are marked ACTIVE.
Disk 0 - Drive E is marked BOOT, meaning it is the OS that is running
The Disk 0 - SYSTEM RESERVED partition, which is usually the ACTIVE partition, is not marked ACTIVE. But it is marked SYSTEM, meaning the files required for booting are here.
From this it looks to me like the XP OS requires the 3TB drive to boot. This is a guess - like I said, a complicated experiment. Does this machine boot with the 3TB drive removed?
It the screenshot from the W7 system:
The Drive 0 - SYSTEM RESERVED partition is marked ACTIVE, and SYSTEM
The Drive 0 - C: partition is marked BOOT
From this it is obvious that W7 will boot just fine without the 3TB drive installed, which is what you have observed. But if that 3TB drive has got an ACTIVE partition (and possibly boot files) then that is going to throw a wrench in the works.
As mentioned previously, you will probably need to remove the ACTIVE flag from the 3TB drive's partition to use it in the W7 system.
But note: if the XP machine actually needs that ACTIVE partition to boot then you will have solved one problem and created another.
Can you recall any actions you have taken in trying to correct this issue that would explain what is going on here?
My Computer
At a glance
Windows 7 64 Bit Home Premium SP1i7-3820GSkill F3-14900CL9Q - 16GBEVGA GeForce GTX660 - Driver 352.86
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built - Jan 2013
OS
Windows 7 64 Bit Home Premium SP1
CPU
i7-3820
Motherboard
Asus P9X79-PRO - Bios 4608
Memory
GSkill F3-14900CL9Q - 16GB
Graphics Card(s)
EVGA GeForce GTX660 - Driver 352.86
Sound Card
On board Realtek ALC898
Monitor(s) Displays
Acer S271HL
Screen Resolution
1920 x 1080
Hard Drives
#1- Samsung 840 Pro Series
#2- Western Digital WD1002FAEX Sata3 Black
#3- Western Digital WD1002FAEX Sata3 Black
PSU
Corsair CMPSU-850TX-V2 - 850 watt (by Seasonic)
Case
Corsair Obsidian 550D
Cooling
Standard 3 120mm case fans, Cooler Master Hyper 212 EVO
As it turns out. i may have made a n00b mistake. i have 6 sata sockets and even though i was absolutely sure that the correct drives were booting correctly. i went to the motherboard manual and it seems that sata socket 5 and 6 are for bootable drives. Any drive in those sockets overwrites whatever the boot order is set to.
what i had it set as:-
Socket 1 = Data storage drive only.
Socket 2 = Boot drive.
Socket 3 = Unused.
Socket 4 = Unused.
Socket 5 = Unused.
Socket 6 = [NEW DRIVE] ment as a non-boot data storage drive.
When i placed the new drive into socket 3. both dual boot OS's booted up correctly.
PS. Xp and Win7 boot up without the drive. So it shouldnt be a problem.
My Computer
At a glance
Windows 7 Home x64 & Windows XP Pro x86AMD Phenom II 1100T x6.Corsair Vengeance 4x 4gb 1600mhz.XFX Radeon HD 6970 + Arctic Cooling Accelero ...
Computer Manufacturer/Model Number
User-built (and proud of it!)
OS
Windows 7 Home x64 & Windows XP Pro x86
CPU
AMD Phenom II 1100T x6.
Motherboard
Asus Sabertooth 990FX r2.0
Memory
Corsair Vengeance 4x 4gb 1600mhz.
Graphics Card(s)
XFX Radeon HD 6970 + Arctic Cooling Accelero Twin Turbo II
Sound Card
Onboard 7.1 Creative X-FI.
Monitor(s) Displays
LG 42LK450u 42" LCD HD TV
Screen Resolution
1920 x 1080.
Hard Drives
2x WD 20EARS 2TB.
PSU
Fractal Design Newton R2 1000W Modular.
Case
Antec 1200 V3 Full Tower.
Cooling
Zalman CPU Cooler CNPS9900-MAX Blue.
Keyboard
Trust Media Centre with Built in Trackball.
Mouse
Logitech Trackball.
Internet Speed
4.3 Mb/s download and 1.2 Mb/s Upload
Other Info
1x200mm Antec 3-speed Blue LED Fan.
5x120mm Antec 3-Speed Blue LED Fan.
Samsung Writemaster Sata DVD-RW.
2x300mm Blue Cold Cathodes.
2xBlue Cold Cathode Rods.
@ TVeblen, my mobo is an Asus Crosshair IV Formula.
@ F5ing , I know... i really should have looked at the manual rather than spending the last week searching every last remnant of the web and racking the brains of this community for the solution. the Asus Crosshair IV Formula is a UEFI enabled board. (ASUS - Motherboards- ASUS Crosshair V Formula.
Thank you to you both for your extreme and professional level of patience ou have shown me. it is greatly appreciated.
My Computer
At a glance
Windows 7 Home x64 & Windows XP Pro x86AMD Phenom II 1100T x6.Corsair Vengeance 4x 4gb 1600mhz.XFX Radeon HD 6970 + Arctic Cooling Accelero ...
Computer Manufacturer/Model Number
User-built (and proud of it!)
OS
Windows 7 Home x64 & Windows XP Pro x86
CPU
AMD Phenom II 1100T x6.
Motherboard
Asus Sabertooth 990FX r2.0
Memory
Corsair Vengeance 4x 4gb 1600mhz.
Graphics Card(s)
XFX Radeon HD 6970 + Arctic Cooling Accelero Twin Turbo II
Sound Card
Onboard 7.1 Creative X-FI.
Monitor(s) Displays
LG 42LK450u 42" LCD HD TV
Screen Resolution
1920 x 1080.
Hard Drives
2x WD 20EARS 2TB.
PSU
Fractal Design Newton R2 1000W Modular.
Case
Antec 1200 V3 Full Tower.
Cooling
Zalman CPU Cooler CNPS9900-MAX Blue.
Keyboard
Trust Media Centre with Built in Trackball.
Mouse
Logitech Trackball.
Internet Speed
4.3 Mb/s download and 1.2 Mb/s Upload
Other Info
1x200mm Antec 3-speed Blue LED Fan.
5x120mm Antec 3-Speed Blue LED Fan.
Samsung Writemaster Sata DVD-RW.
2x300mm Blue Cold Cathodes.
2xBlue Cold Cathode Rods.