Reassigning Drive Letters in Windows 7

Posted on 2010-01-12
Medium Priority
Last Modified: 2012-06-21
I installed Win 7 on a box with built in (5) removable SD, COMPFLASH ....etc.

Win 7 decided on it's own to make SATA drive 0 drive H instead of drive C

The boot drive should be C .. more because of default assumptions made by installers ..

But changing the drive using computer management/disk management does not work.  when i change H to C ... it says "paramer is incorrect"  and will not change it.

How can the drive letter be changed?
Question by:bborner
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 47

Expert Comment

ID: 26298486
Swap the H & C cables on the motherboard.
LVL 56

Accepted Solution

McKnife earned 2000 total points
ID: 26298600
It can't be changed. Really, all effort would be in vain. The only case wjhere changing would succeed, is, when the letter used to be c: but has changed for some reason.
Reinstall, but before you do, deactivate the card reader (at the bios level). You can reactivate it afterwards.

Expert Comment

ID: 26298809
I have found it best to ensure that the only drive you want to install Windows 7 on is the only hard drive active.  For some reason Windows will view card readers and such first in the boot order, no matter what the BIOS order is.  I recommend that you unplug the cable  (if possible) first.
LVL 92

Expert Comment

ID: 26302076
>>   Win 7 decided on it's own to make SATA drive 0 drive H instead of drive C   <<  no, it did not.
you probably left your memory card reader, and other devices connected, and that way, the disk became H

you'll have te do the install completely again, AFTER disconnecting those
connect them AFTER the install !

Expert Comment

ID: 27400790
The answer to the question is, the drive letter cannot be changed, I would recommend the credit go to McKnife.

Featured Post


Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Possible fixes for Windows 7 and Windows Server 2008 updating problem. Solutions mentioned are from Microsoft themselves. I started a case with them from our Microsoft Silver Partner option to open a case and get direct support from Microsoft. If s…
On some Windows 7 (SP1) computers, Windows Update becomes super slow even the computer is reasonably fast.  There's one solution that seemed to have worked well for me (after trying a few other suggested solutions).
This Micro Tutorial will teach you the basics of configuring your computer to improve its speed. It will also teach you how to disable programs that are running in the background simultaneously. This will be demonstrated using Windows 7 operating…
This Micro Tutorial will give you a introduction in two parts how to utilize Windows Live Movie Maker to its maximum editing capability. This will be demonstrated using Windows Live Movie Maker on Windows 7 operating system.
Suggested Courses

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question