Flash Drives Not Being Allocated Drive Letter And Cannot Access?
Mar 31, 2012
When attaching a flash drive:
1. The autoplay pop up doesn't appear;
2. The device does light up initially;
3. The device doesn't show up in "Computer"
4. The device doesn't show up in Disk Management - just Disk 0 (system reserved, C: and I and 0 (CD ROM)
5. The device appears in Device Manager under USB controllers as a storage device but I can't access it.
6. This happens with all memory sticks and occasionally with ipod etc.. but sometimes for no apparent reason they work! All devices works ok with other computers.
7. 9 times out of 10 plugging in a device or turning on the USB attached printer will cause the computer to BSOD, usually with IRQL NOT LESS OR EQUAL 0X0000000A
8. Devices are never allocated a drive letter.
The only thing I can think of is that I repartitioned the external hard drive (which I attach to back up) which may have confused the computer with driver numbers? Possibly?! And I did fiddle with the System Reserved drive as I had back up issues and one of the solutions was to rename it, then I renamed it back again (I think).I'm running Windows 7 Home 64-bit, Avira anti virus and the computer is about 6 months old, working ok until a month ago. Can't think that we downloaded anything about the same time as the problem started but possible. I've tried to update all drivers that I can think of but the only one that needed doing was the Nvidia GeForce 7025 which was outdated.
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Jun 17, 2011
I just formatted and installed afresh Win7 Ultimate N on a WD1000GB. Since setup screen it recognized only 3 of 5 disk drive (all of same HDD).Before that I resized two of the drives with `EASEUS Partition Master 8.0.1 Home Edition` but I did so for the drives he actually recognized. (I accessed those drives through another OS which is installed on another HDD).It would see them in disc management but it can`t assign drive letter, it says : Disk Management Console view is not up-to-date... even the program can`t assign letter ot mess with the size of the drives
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May 25, 2012
I've got new computer with Windows 7 & for some reason or other cannot access two Sandisk flash drives (Cruzer Blades) yet no problems with other makes!
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Oct 5, 2009
i M myself a administrator.
i have a big problem my drive is not opening.
This all happened 'coz of PERMISSIONS.
i Just have right clicked 1 drive & have gone to SECURITY TAB & then EDITED PERMISION in permission i TICKED DENY {FUll CONTROL} & THEN APPLIED.
So Now i just cant open my drive whenever is try to open that drive it is telling that ACCESS IS DENIED.
& whne i m going to try that same thing & give ACCESS, when i right click the SECURITY TAB is mising.
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Aug 15, 2011
My laptop is not letting me copy anything onto USB flash drives. I'm using windows 7. I have already tried system restore and uninstalling the drive in Device Manager and Disabling write protection in the registry but to no avail. I am able to format the pen drive and also access files on it and copy files from it. But I am not able to paste files from my laptop onto the pen drive. It says "Destination folder access denied" and "You need permission to perform this action". I am running an administrator account. Also I am able to do everything normally in the case of a external HDD but again face the problem when trying to paste something to SD cards. I have taken ownership, run as administrator and also tried to drag-drop but to no avail. This not for just 1 particular file/folder. I am not able to copy anything to the USB and at the same time I am able to copy anything to the external HDD.
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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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Jan 7, 2012
I just allocated more space to my system restore to ensure that when i back up files/docs there will be sufficient space. But does the allocated space for system restore affect at all how much space is allocated for backup? If not, i will would like to turn back down the allocated space for the restore.
Windows 7 Home Premium 64 bit
Service Pack 1
Computer is ASUS laptop
4 gb of ram
64 bit system
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Aug 17, 2012
How can i close the drive "g" in local group policy from "prevent access to drives ..."? The drive "G" isn`t in the list?
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Jun 9, 2012
I have a database called customers with their information (First Name, Last Name, street address etc) I have written a personalized letter and would like to send it to each customer in the database?What I want to do is, Replace "Joe Bloggs" with the name of each of the customers If I had Sue Rain as a customer the letter?
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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 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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Apr 14, 2012
i kept security to c drive now i cant change it
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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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May 8, 2012
in 7 doesn't see any USB flash drives. Check in disk management - not showing up there either.AND........If I switch HDDs & revert to XP - same thing. No usb flash drives appear. And in control panel > disk management they do not appear as unassigned also.
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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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Aug 31, 2009
I haven't really had any issues since I first installed Windows 7 and now I'm trying to access a shared drive over a network and I'm getting this annoying error message that I cannot access a shared drive over the network.
I decided to reinstall Windows 7 and before that I never had this issue.
I have not installed any third party software, I've enabled network discovery and right now I cannot access any shared folders or drives, at all, though it can see it.
I'm getting that stupid error message: "<Network drive> is not accessible. You might not have permission to use this network resource. Contact the administrator of the server to find out if you have access permissions. Access is denied."
What am I doing wrong here?
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Jul 21, 2011
I've got three different (but identical, to look at them) MicroSDHC thumb drives. When I tried them in my new Win 7 PC, it assigned a different drive letter and description to each, under Devices with Removable Storage. Even though "Hide empty drives in the computer folder" is checked in my Folder Options, it's not working -- they're still listed under Computer, grayed out. Worse, when I fire up Windows Explorer, it occasionally (but not consistently) gives me a series of errors about the drives not being available -- and this continues to happen even after I uninstall them in Device Manager.
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Jan 16, 2012
2 of my usb flash drives are not recognised while 2 are, and I have just been given a new one.When I plugged it in the computer said it was loading drivers and then that it was ready for use.It shows up in device manager but I cannot access it from 'my computer'.The same applies to 2 of my 4 drives.
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Aug 6, 2012
When I put the flash drive into any of the USB drive on the computer I get a message come up firstly asking me to format the flash drive. I even get this message come up when I plug my TomTom satnav in via USB.If I click on the drive designation I get the following message: {{ K:drive is not accessible. The volume does not contain a recognized file system. Make sure that all required file system drives are loaded and that the volume is not corrupted.}} I know that the memory sticks are OK as I have tried several and also tried all the USB slots on the computer and in another computer. I cannot remember having done anything to have caused the problem since last using the USP drives.
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Feb 21, 2009
It is difficult to remove multiple flash drives using the safely remove hardware dialog. I had three flash drives plugged into a USB hub, and I wanted to remove all three at once. I click on the remove hardware icon in the notification area, but it only allows me to select one drive at a time.
When I click on a drive to remove, the dialog disappears and another window opens to let me know that the drive can be removed.
I have to repeat this process for the other two drives. Worse still, the remove hardware icon changes position when the safe to remove dialog appears.
Ideally, when multiple removable devices are installed, the remove hardware dialog should remain visible after selecting a device to remove. That would allow the user to select additional devices to remove if so desired.
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Feb 26, 2012
I have win 7 home premium on one tower and win 7 pro. on another. My question is can I save a system iso of each one on usb flash drives in case of a crash? My home premium c:/ drive shows 445gb. free from 465gb. so would I have to use at least a 20gb. flash drive. I know New Egg has a large selection of flash drives. I have a second hd in my pro system I used to save a complete iso backup on it.
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Mar 16, 2012
I install a flash drive, opens automatically, when I close programs and click remove I get a window item is still in use. Close all programs and click safe to remove. I am not real literate on computers but I don't know where to go to even find if there is anything left open in the flash drive. I keep going back ti remove safely and same window comes back.. How big a risk if I just remove it?
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Dec 9, 2011
I have a problem with my PC. It is simply can't read lot of USB drive. I need to restart in order to be able to read it. Sometimes it is working or else it is still fail to read.I don't know what is the problem but I get this Inaccessible Function error. And when I checked at Disk Management, the file format of the USB flash drive shown as RAW.I have Ubuntu on my PC (dual boot). And it is just working. Therefore for some reason, my Windows 7 is stupid enough to detect my USB file system.
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Jan 6, 2010
I have tried multiple fixes and still cannot connect any flash drive or external drive to any usb port on my computer without the dreaded "Usb not recognized" error. My mouse and keyboard are both usb and have worked fine though. I have unplugged the power cord from my psu for a few minutes. I have booted into safe mode. I have deleted the infcache.1 file. I have check my Bios settings (and have latest bios update). I have completely removed all the usb devices in device manager and rebooted which reinstalled everything. I have booted the computer up with a flash drive already in a usb port. I have gone into Drive Manager to see if anything is recognized without a drive letter. I have even applied the hotfix from here - [URL]. Nothing seems to work, yet all of these devices work fine on my netbook running Windows XP.
When I originally installed Windows 7 everything was working fine. I would say it roughly stopped working a month or two ago. I don't constantly use flash drives or my externals so I could be a little off on the time frame (why I didn't do a system restore). I first noticed the problem when I plugged in my Tmobile G1 phone to transfer files and it wasn't recognized. My phone would still charge off of the usb port, but I couldn't mount and browse the 4 gig sd card in my phone. It was working before because I have files on my phone that I transferred from my computer after the Windows 7 install. I started testing out my known, working flash drives as well as my usb powered 2.5" external drive and they too come up unrecognized on all usb ports (front and back).
My specs:
AMD X2 5000+ BE
Gigabyte GA-M55plus-S3G mobo
G.Skill PI Black 4GB ram (2x2 - DDR2 800)
2 Western Digital Sata drives
Nvidia 9800 GTX+ video card
450 Watt PSU (don't remember brand right now, but good amp rating on 12v for video card).
Windows 7 Ultimate x64
The only drivers I am using for the system that are not the default Windows 7 drivers are for my video card and onboard audio. Onboard audio is the only Windows 7 driver provided on the Gigabyte website for my motherboard. What shoild I do, check or double check or should I start considering formatting and a reinstall of Windows 7 (which I have been trying to avoid)?
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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 20, 2009
I have a couple of flash drives I have formatted to NTFS. One for an install drive and one for a readyboost test. If I formatted the drive in CMD do I have to format it the other way (to FAT32) in CMD or can I just right click the flash drive and format it there?
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Jun 8, 2011
I got a new motherboard yesterday, installed it, and installed windows. This morning, I decided it would be a good idea to flash the UEFI (BIOS) to the newest version. Now, when I try to boot, it just sits with a gray cursor at the top left of the screen. I went into the UEFI and went to boot order, but it only shows my 1TB hard drive and my dvd drive. But I had a 750GB hard drive with windows installed. I think this is the reason it won't boot, because it doesn't see the drive with the OS installed.
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