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: Can't assign letter to a partition

13 Apr 2011   #1

Windows 7 RC (build 7100)
Can't assign letter to a partition

I have two partitions on a 500GB drive (one for windows boot, one for files only)I've just reinstalled win7 and I realised that the partition for files is not shown in My Computer. I opened Computer Management and clicked on Diskmanagement. As you can see on the picture the partition it doesn't havea name neither a letter assigned. I don't want to delete it or formate it because it's almost full of files I need. When I right click on the partition only the Delete option is available. Can somebody help me solve this problem?
Can't assign letter to a partition-part.png

My System SpecsSystem Spec
13 Apr 2011   #2

Windows 7 Pro x64

Looks like you have another drive that has either no letter or it is unallocated space.
The partition after the 100MB system Reserve partition.

I have seen this before with AHCI enabled. All the drives get mixed up for some reason.
That 100MB sys reserve partition that is on your drive 1 should also be on drive physical the OS is installed to. But your OS is installed to a partition on what is called drive 0 (zero). But that drive is not the first drive in the system (the drive connected to SATA port 1.

What you have here is a mess. Sys reserve in a partition on one physical drive, the OS in another partition on a completely different physical drive. The other part (partition) of the physical drive the OS is installed to doesn't have a drive letter and you can't assign one.
The other part (partition) of the physical drive that has the sys reserve partition looks to be unallocated space.

May be time to boot the system from a BOOT CD that has a file manager program on it and copy all your personal data over to a external drive. Format everything and start over.
If you go that route I suggest you only install one physical drive in the system until you reinstall the OS.

Good luck.

If it was me I would of already wiped that system and started over.
My System SpecsSystem Spec

 Can't assign letter to a partition

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar help and support threads
Thread Forum
Unable to assign drive letter to HD partition?
Hi, Run into an issue with a hard drive showing 3 partitions, but I can't assign a drive letter to it. Background: It was running Win 7 Pro 64-bit, but was having occasional issues with blue screening. I've pulled the hard drive from that PC and have it hooked to my own (also Win 7 Pro 64)...
Hardware & Devices
Assign another drive letter than original (D:) to Recovery partition?
Hello, having to configure a new HP laptop with pre-installed Win7, I need to create some extra logical drives to organize things better. Unfortunately, the usual OEM scenario applies: all four possible primary partitions are already happily taken by the manufacturer: SYSTEM (no drive...
General Discussion
Can I assign a letter to the SYSTEM partition?
Hi, I have a new HP laptop running Windows 7 Home Premium 64 bits. As I am about to tinker with the partitions, I wanted to save the MBR and the first 3 (FAT32) / 7 (NTFS) sectors of each partition, but the software I'm using to do this won't show me any info for the small active partition...
General Discussion
Want to Assign a drive letter to a partitioned device but the letter i
Want to Assign a drive letter to a partitioned device but the letter is not in the list I created a partitioned drive I went to assign letter G but I don't see it in the list. no drive is using the letter G I do believe that some USB is using letter G, but I don't see my USBs ( see image) ...
General Discussion
assign device letter.
hi, i have a 500gb segate 2.5" portable hard drive which i store all my music on as my computer had a small hard drive. i have been using this with itunes for some time and therefore only being able to play or sync them in itunes when the external hard drive is plugged in. lately every time i...
Hardware & Devices
How do I assign drive letter in Partition Wizard
I want to do file check but its telling me to give each partition a drive letter When I either right click partition or click partition at top "change letter" is not higlighted. If I use Label it says it will wipe out anything on that partition which I obviously dont want can anyone...

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 06:59.

Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App