Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: GPT HD won't assign letters in Ext enclosure

01 Apr 2014   #1
Microsoft MVP

GPT HD won't assign letters in Ext enclosure

I replaced the 1tb Seagate 2.5" HD in Lenovo laptop with SSD. Bought this enclosure which has excellent reviews, SATA III and USB 3.0 support: [Optimized For SSD, Support UASP SATA III] Inateck 2.5 Inch USB 3.0 Hard Drive Disk HDD External Enclosure Case with usb 3.0 Cable for 9.5mm 7mm 2.5" SATA HDD and SSD, Tool-free HDD Installation, Compatible With Windows 2000/ XP /Vista/ 7

Installed 1tb easily (just slide drive in and snap closed), loads drivers in USB 3 port, shows up in Disk Mgmt and PW Home (where files can be Explored only) but will not take a drive letter so files are inaccessible.

Any suggestions are appreciated. I'd like access to the files but can format it if the problem is the UEFI or GPT formatting. If necessary how would you reformat?

Attached Thumbnails
GPT HD won't assign letters in Ext enclosure-capture.png   GPT HD won't assign letters in Ext enclosure-capture2.png  
My System SpecsSystem Spec
01 Apr 2014   #2
Microsoft MVP


Solved by upgrading to Partition Wizard Home Edition 8 which will apply the letter to each external partition.

I rarely use Home Edition but instead use the Boot Disk, which in this case is not able to support drive letters from WinRe. So I got caught out by using PW 7 which apparently doesn't have enough GPT/UEFI support.
My System SpecsSystem Spec
01 Apr 2014   #3
Microsoft MVP

Windows 7 Ultimate X64 SP1

Good news Greg. The screenshots are confusing. In the PW shot w7 is on the 1TB HDD, Disk Management says it's on the SSD.
My System SpecsSystem Spec

01 Apr 2014   #4
Microsoft MVP


The 7 install is on both, Gary. I just pulled out the working HD from the laptop (DISK 1 and Disk 2 shown) and reinstalled WIn7 on the smaller SSD.

I think since it's so big I'll leave that old Win7 install on HDD so if SSD dies I can just slip the HD back in, yet still have plenty of storage space while in the external.

Current config:

Attached Thumbnails
GPT HD won't assign letters in Ext enclosure-capture.png  
My System SpecsSystem Spec
02 Apr 2014   #5

Microsoft Community Contributor Award Recipient

Vista x64 / 7 X64

Looks like you sorted it out Greg. We are fortunate to have PW and other disk management/imaging tools freely available.
My System SpecsSystem Spec

 GPT HD won't assign letters in Ext enclosure

Thread Tools

Similar help and support threads
Thread Forum
MagicDisc won't assign drive letters (virtual drive help)
I've just got myself a new PC here, and I'm in need of a virtual hard drive or two. My laptop which I still use has been running MagicISO/MagicDisc for a long time now and never had a problem. Since both computers are on win7, I figured it would be the same situation on the desktop, but MagicDisc...
Dual Boot W7/XP using Grub - Can grub assign letters to partitions?
Hi I am looking at Grub4dos since my recent foray into all things bootloaders. I am gaining a little footing with what I can and can't do (practically!) Although it was definitely trickier than I thought (or I just don't have the same time like I used to... ) Anyhow, I am looking at Grub because...
Installation & Setup
Why would Windows 7 assign drive letters oddly on an internal drive?
I've spent several hours doing searches trying to find a reason for the way drive letters have been assigned on a new system I put together today. Every system I have ever configured (starting in the late 80's) with 2 internal drives the first partition on the boot drive is C: and first partition...
General Discussion
Windows 7 does not assign drive letters to external HDDs
Hi I'm having some problems with some of my external HDDs. I have a 500Gbs WD Caviar Green and a 500Gbs Seagate ST350032, both using a Cooler Master XCraft 360 enclosure. A few days ago, I decided to move 50GBs from D to C using Paragon 2010. I already did this on my laptop without any...
Hardware & Devices
Permantly Assign External Hardrive Letters For Laptop
I have 2 external hard drives that I attach to my laptop. One is back up the other is media. My music software (Zune) is pointed at F but it's a crapshoot as to what letters the hardrives are given. I understand it is possible to permanently assign harddrives a letter but can't find how it's...
Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 13:03.
Twitter Facebook Google+