Changed Drive Letter With Disastrous Consequences?
Oct 1, 2011
My new Windows 7 computer has been made unbootable because I tried to change a drive letter. What can I solve this problem ? How can I prevent the same thing happen again? I will explain what happened. Yesterday, I booted my Windows 7 computer and as it was booting I plugged in my camcorder in a spare USB port.When it booted, I saw that the letter of my external hard drive had changed from I to J. I could not have this for then the Search documents function would not work. So I opened up Disk Management and tried to change the drive letter from J to I but the letter I was not available. I had used Disk management before and I knew that the drive letter I must have been used by some obscure drive in my computer. I decided to change the F drive to R in an attempt to make the letter I available. I then tried to change the letter drive from J to I and this time the drive letter I was available. I changed the drive letter but I did not restart my computer immediately. Later I shut down the computer.But when I tried to boot up my computer again, it would not boot at all. I changed the plug fuse 3 times and the same thing happened so I know it was not plug fuse. I have all my data and my Acronis backup in my external hard drive.What am I going to do?
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Aug 21, 2012
I have a USB external hard drive that I keep all my documents etc on (had it for years)I upgraded from Vista Home to & Home Premium then had to upgrade recently to Professional to run my Sage. Through all these upgrades my ext. drive ran fine. Occasionally the drvie letter would change if I had something else plugged into the USB, this was always easily corected in disk management by changing the drive path.The connection on the case packed up so I had to get the drive put into a new case, now when I plug it in the drive is assigned G instead of F, I tried to change the drive letter allocation in Disk Management but it won't let me as the program still thinks I have a second ext. hard drive which is labelled F. I suspect this has happened because when the usb connection broke the drive was disconnected suddenly instead of a proper eject.How do I get Disk Management to remove the inactive drive - i can't find any obvious way - eject, delete etc are all missing when I click on tools or tasks.
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Apr 3, 2012
I'm not sure what the trigger was but my C drive where my os is installed apparently took the drive letter of an external drive that I use for backup. It is now the X drive and I cannot boot. I do get the repair screen but cannot repair as there is no operating system to choose. Booting from windows disk makes no difference here.My bios (uefi) can see the disk, I can also see it from the command prompt?
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Nov 10, 2009
I have windows XP pro 32 bit installed in C drive and then installed clean win 7 64bit in drive D. Everything works properly but when I boot from XP, it is in C drive and I see Windows 7 in D drive, when I boot from Windows 7, I see win 7 in C and winXP in D drive. Is it normal or is there any I can do to fix win Xp in C and Windows 7 in D?
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Jul 10, 2012
I recently built my computer and installed a ssd and a hdd, the OS is on the ssd which is the c drive but since it is smaller than the hdd I tried to change the letters around and make the hdd the c drive using regedit because the default install location seems to be the c drive and after restarting the computer it boots up and says preparing your desktop then goes to a blue screen with just the cursor. I tried booting in safe mode and all I get there is a black screen also
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Nov 16, 2009
I lost my Event Viewer, and had to do a repair installation to fix it. Unfortunately, during the repair install, Windows decided to rename my second HD as the D: drive... it was K: before that. Now I cannot access any of my docs, pictures, music, or videos through the normal means... they don't show up in libraries or explorer, and apps like Restorator and Sure Thing (CD labeler) cannot find them. I think that means the paths are broken..?
It won't allow me to rename the HD back into K: (it's not listed as available). I can access the data by clicking Computer > D, and I can see the data is there, but its unusable as of now. Any ideas?
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Apr 25, 2011
I have Win 7 home premium on an HP laptop with 4 usb ports. I have 2 Western Digital Elements 1.5 TB drives for backups. If I plug in one of the drives, Win assigns a drive letter, but if I add the second one it doesn't.
To troubleshoot, I've plugged each drive into every usb port on the laptop, and each port reads each drive alone, but if I plug in the second drive while the first is still in, it shoes up in devices but does not get a drive letter. I tried assigning a different drive letter to the device plugged in first, but Win still doesn't assign a letter to the second drive.
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Oct 12, 2012
One drive appears to have duplicated itself by populating any drive letter thats free! Tried simply deleting the ones not needed but they reappear?
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Jan 18, 2013
I decided to just revert to my old XP64. At first I was gonna try to dual-boot, but the fly in the ointment was all I had was an image on my external HD, which has about 100G of other stuff on it. My disc drive would not for the life of me burn an ISO image on any of my three DVD types. And the process of trying to find how to fix the drive problem and/or create just a bootable PARTITION on a HD without effecting everything else just drove me insane...which is kind of where I am now. After a week now I just have to get back to my project. lol And if that means no fancy windows 7 internet experience..while attempting a dual-boot scenerio workaround, I shrunk partition C and created a new 5G partition at the end of it. In EaseUS, I assigned it letter B and I set it to active, figuring it was to be bootable (wrong, I know). Additionally near the same time in Folder Properties, I unhid system files, folders...etc.
NOW the System drive showed as F! Then, attempting to use EasyBCD, it told me it could not find the BCD files to begin. So, naturally it had to do with that.I thought maybe it should have been B, but why would Ease US give me that letter option?After showing Easy BCD the file it seems to be OK....there. Also in Startup & Recovery it is listed in System Startup as the default system. But is it OK?Also, should it also be active. Did I inadvertently switch it by making the new partition active? What should I do to get it to boot properly. I AM planning on booting XP from a flash drive anyway, but still.
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Jun 18, 2009
My backup software's profile database is expecting to backup to H:, which was the drive letter for my external backup drive back in XP. This drive comes up in Windows 7 as K, because Windows 7 has given my four usb card reader drives the letters F,G,H,I.
Disk Management will not show these four card reader drives unless media is inserted (connected vs. disconnected). I have changed the letters for F,G,I to T,U,W, but only because I have those types of cards (SD, CF, MS)...I do not have an XD or SmartMedia card for the one dang drive I really need to change.
What are my options, other than buying the cheapest SM card I can find to make the drive visible for this task? The SmartSyncPro database has many profiles, so remapping all those to point to K would be a major hassle.
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Jul 16, 2011
I am running Windows 7 Pro. Have a external dual dock connected to a estata port. One of the drives assigned letter K often comes up as E and I have to change as application is looking for K. Another disk in this dock works fine. No problems. why this might be happening or anyway to prevent? Seems like when I go to disk management and assign K it should stay that way.
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Jul 23, 2009
Got this from directory opus site, but made new registry file for you.
1. - unzip drive icons to - C:DRIVE ICONS
2. run registry file
3. reboot pc
Voila!
to undo run the restoredriveicons reg file.
here is original link - http://resource.dopus.com/viewtopic.php?t=7089
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Jul 25, 2009
I deleted my existing OS then created two new partitions on the same drive. Then I installed Vista on one partition and that partition was properly named "c" as ususal. Then I started Windows 7 setup.exe from a different hard drive and let Windows 7 install itself into its own partition. When I got to "My Computer" the Windows 7 partition was labelled as "I" instead of the expected "C" which had never happend before when I did the same thing.
Does anyone know a save way to label the Win 7 drive as "C" while in Windows 7?
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Mar 22, 2012
I have a new copy of windows y 64 bit ultimate. I currently use w7 64 home premium and it is on C drive and the drive is a sata 2 drive. But when I build my new system I want to install onto a new drive which is sata 6.0 and I have made a partition on that drive (letter M) for the O/S to be installed onto ( ive allowed 150Gb ).
So my question is when I build my system and am ready to install w7 can I install onto drive M on the new sata 6.0 drive?
I will unplug the old boot drive as I understand windows will boot to that if I dont unplug it, then when I have installed new O/S on the new drive, partition "M", I will plug it back in and format the old boot drive.
So then windows will boot to drive/partition M, if that works, and C drive will just become a data drive. I understand I probably will have to do some messing in bios, so any help with that will be good.
this will be my 1st build but I am not to bad with computers and have changed cpu's/HD's/gpu's/fans etc etc. but not mobo's and cases. And never changed a O/S onto another drive with a different boot drive letter.
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Apr 14, 2011
i want to change a HDD drive letter from F to D, this drive has games and apps installed on it, will those still run ok after i change the letters?
FYI the OS is on a seperate drive C
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Nov 21, 2010
I just built a new computer which I am trying to set up identical to two of my present ones. The first terabyte hard drive is divided into 5 partitions, C thru G. Windows 7 is on C and Windows XP is on D. The other three partitions are categorized storage. I also added two more terabyte drives which are supposed to be H & I. Since my CD/DVD rom had assumed "H" in Windows 7, I reassigned the drive letter "J" to it. When I installed what was supposed to be my "H" drive, it showed up as "I". When I attempted to reassign the drive letter "H" to it, "H" is not on the list of available drives, So I tried renaming it to "Q" and then back to see if "H" would show up. It didn't. I went ahead and put the final drive in It was supposed to be "I" drive and indeed it came up correctly as "I" drive. So everything is in order now except for my "H" drive which still remains as "Q" until I can figure out how to make the "H" drive letter become available again. This si important to me since I do regular synchronization between my other computers and the drive letters need to be matched on all of them.I am not on the new computer right now, but on my last built one which has the same setup. I didn't seem to have any problem on this one since the drive letters are all on order. I've never had a lick of trouble getting them right on the XP partitions.What do I need to do to get "H" back on the list of available drive letters?
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Mar 31, 2009
I previously shared my iTunes library from my desktop computer which was running Xp x64 Professional, and accessed the library through a M: drive that I could access on my laptop and other computers in the house. I set up the M drive following these instructions found here from LifeHacker and here from Microsoft previously.
I decided to try the same with 7 and everything goes according to plan until I get to the part where I go to add the new "M" drive and I can not click to "Assign the following drive letter" followed by letters that I can assign this new drive. I can only select "Mount in the following empty NTFS folder." Is anyone familliar with this issue and tell me what I am doing wrong?
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Sep 21, 2012
I just got a couple of new HDDs to make notebook backups (clones) on. When I first formatted each one, using a USB dock, I set the drive letter of each one to U. Everytime I change the drives, the drive letter changes itself to E. I change them back to U but they change themselves back to E the next time I put them in the dock. What is going on here and how can I keep the drive letters from changing?
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Mar 26, 2010
Recently I have found that when I attach an USB drive to my system I have to go into "Administrative Tools -> Computer Management - Disk Management" and manually change the 'Drive Letter and Path' for the drive.
Does anyone know how to get Windows to assign a drive letter to the USB drive automatically?
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Jul 16, 2010
till 2 days ago, when I connected a USB stick or any other USB device, it was given a driver letter automatically and a window prompted for which actions I want to do.Now (after a windows update?), the drive doesn't receive a drive letter automatically. I have to go into disc manager a give manually a drive letter in order to be able to use the drive.
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Aug 20, 2010
I had windows 7 on a SSD drive, assigned C: by windows 7, but it was full so I decided I'd clone it onto a bigger SSD drive using Acronis Disk Director. Went swimmingly I thought, both drives contained the same data. I wasn't too sure what my next step ought to be, whether acronis will have sorted it so that my new SSD now has the orginal SSD's drive letter or not. If it did, it will be mean a simple transition. But you guessed it, it left the drive letters the same, so when I booted up, it loaded from the orginal SSD. I then changed the original SSD drive letter, and used EasyBCD to remove the original boot and create a new one with the new SSD. Unfortunate now when I boot up Windows 7 I get a Preparing Your Desktop message for a couple of mins, but it's then followed by a screen with a cursor but no desktop icons or taskbar. It also seemed unresponsive to keyboard strokes.
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Nov 4, 2010
I have a triple boot system:
C - Windows 7 Ultimate - SSD array D - Data - WD 640 spinner 1 E - Windows 7 Pro - 1st partition on WD 640 spinner 2 F - Windows 7 Enterprise - 2nd partition WD 640 spinner 2
Using Acronis True Image 2010, I keep 2 images of each OS on D.I'd like to put an image of C onto E, then make some changes to it. I think I tried this back in the Vista beta days, but can't recall if I ever got it to work, tempted to say "no".
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Nov 22, 2011
Windows 7 Ultimate How can I use a specific Letter for a drive?
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Sep 23, 2010
My laptop is Acer with Windows 7 home premium 64 bit OS. It contain only 1 single partition disk that is c drive only.Recently, i accidentally convert the c drive which contain OS into dynamic disk.After i restart the laptop, it shows the following: BootMgr is missing Please press Alt, Ctrl +del to restart Now, i not able to enter the window. I am so worry because my important data is kept inside the hard disk, and i still not yet do any back up copy on it.I searching on this forum and learnt that i need a window 7 installation disk to repair it, but my problem is the computer dealer not give me any windows 7 installation disk when i baught this laptop as their said all the driver and windows program already kept in side the harddisk.I tried to remove the laptop hardisk which is a 500GB toshiba SATA hardisk. Then, i use the other laptop with Windows XP professional with the intention to copy yhe file inside the toshiba hard disk.However, after plugged in the hard disk to the other laptop, under the disk management, it shows that the toshiba disk as : dynamic disk, unreadable.i having problem to backup the data inside the toshiba hard disk.....
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May 10, 2009
My C: and a couple of other partitions come up fine, but some are missing.I go into Disk Management to assign a drive letter to these parititions but I get an error."The operation failed to complete because the Disk Management console view is not up to date. Refresh the view using the Refresh Task. If the problem persists close the Disk Management console, then restart Disk Management, or restart the computer."I've tried refreshing and restarting with no luck.I went into Vista and it shows the same thing, unassigned drives and no luck assigning a letter.
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Sep 11, 2012
I have 4 USB memory sticks I use on a regular basis, a 4, a 16, a 32 and a 64 GB.This problem only happens with the 64 GB stick, and only on one of my several computers.Most of the time when I insert it, windows does not automatically assign it a drive letter. I have to into the computer management --> Disk management section and manually assign it a drive letter. Occasionally however when it is inserted, windows assigns it a drive letter just fine. This only happens on one of my laptops.It works fine of all of my other computers and every other computer I have stuck it in
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Jan 17, 2009
Dual Boot Windows 7 x64 beta
XP x32
After installing Windows 7 into a new partition, the OS started up fine from the new dual boot screen, but I didn't have access to my Win XP partition from within explorer. In disk management, I was able to add a letter to my WinXP volume (I took the next available "O") and it popped up in explorer no problem. However, after restarting, Win 7 begins to load, then BSODs way too fast to think about catching with camera.
I got the option to run startup repair at the restart, and I did so. The conclusion there was that I had plugged in a device during the last session that was now causing problems. That is bogus, unless that device is my newly lettered partition. I read many a thread in here about re-lettering a partition that had lost its letter in the install (usually the other OS volume in a dual-boot environment), but didn't see those posters then have issues upon restart.
I can boot into XP, although here now NONE of my drives have letters.
Any Help? I really was diggin' my Windows 7 time, and really enjoyed taking advantage of all my RAM and x64 versions of CS4 and CAD.
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Sep 14, 2010
I installed Windows 7 to test it on my PC (I still use XP for most purposes). Now I want to reinstall it because I want to try a different version. Unfortunately, I would have to re-assign all drives again and I have a lot of them. Is there any way to save the current assignment and restore it when I have reinstalled Windows?
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Feb 12, 2012
I have the operating system win 7 professional 64 bit but it quit assigning drive letters. I can see the drives (usb flash memory or usb hard drives) in the disk managment and assign a drive letter successfully. I cannot figure out what changed and now my laptop will not assign any drive letters to my external drives automatically.
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Sep 24, 2012
I want to change the drive letter of the drive on which Windows 7 is installed.It is currently F:, and I want to change it to K:It is not possible from the Disk Management as I tried.
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Dec 5, 2009
I have a second internal hard drive with data. Currently it is the slave. I have tried cable select with the same result. Disk management sees the drive but I cant assign it a letter. All options under Task -> All options are greyed out except delete volume. How do I give it a letter so I can access the data?.
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