Hardware Drivers :: USB Connected Hard Drive No Longer Recognized?
Feb 24, 2014
I connected a hard drive to my PC. I was able to read/write to it just fine. In fact, I've used it various times in the past. I just tried connecting it again now, and the drive is not showing up on Windows 8.1 at all. It's not being detected.
I connected the drive to a Mac to see if it was the drive, but it wasn't: the Mac was able to read it just fine.
I've had a similar situation in the past with this machine, where my iPhone was, seemingly out of nowhere, no longer recognized by the system. Plugging it in would register on the phone, but the PC wouldn't acknowledge its existence.
I'm completely at a loss as to why this can be. Other drives connect to the PC just fine (in fact, I have another one connected now, as I write this, backing up some data).
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Sep 23, 2013
I have a TSST 208DN DVD drive installed in a Win 8 Pro Toshiba C855 machine. I am no longer able to use the drive.
The problem began with my always having to reinstall the drivers upon reboot. I found a solution, or so I thought, that advised me to delete my upper and lower filters entries in the registry. I only had an LowerFilters entry for AnyDVD. I deleted it and can no longer use the drive.
Dev Mgr shows drive with yellow excl. triangle (see image #1 below) and this msg under the general tab of properties - Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19) (see image #2 below). I have drivers from MS and Toshiba installed (see image #3 below)
image #1
image #2
image #3
I have already uninstalled and reinstalled and rebooted many, many times. These are my current registry entries:
image#4
I have uninstalled and reinstalled AnyDVD. I have put back in the LowerFilters key and deleted it and rebooted many, many times. The registry entries look like those on my other laptop with the exception of lowerfilters set to AnyDVD and upperfilters set to the manufacturer's driver (GEARaspiWDM) and that machine works just fine - for about 10 minutes and then overheats and shuts down - it's a Dell - but that's another story.
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Aug 17, 2014
My portable hard drive stops showing up all of a sudden. It is connected to a USB hub. When I go to 'Disk Management' in 'Computer Management', the hard drive shows up as Unknown - Not Initialised. Also this hard drive works while not using the USB hub, and the USB hub works as well with other devices.
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Jan 18, 2014
I built my computer a couple weeks ago and am running windows 8.1. I currently have a 128gb SSD and a 1tb internal hard drive (WD Caviar Blue) I obviously used the ssd to boot windows and currently windows is detecting my 1tb hard drive but it is not usable. I have tried diskpart commands to clean and format and I keep getting the error message "DiskPart has encountered an error: The request could not be performed because of an I/O device error". The hard drive was brand new and cables are fine. This is what everything looks like..
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Jun 27, 2014
when plugging in my seagate freeagent hard drive i get the message "USB device not recognized. I have been to device manager and it appears as "unknown USB device (device descriptor request failed)". I have tried uninstalling it and reinstalling, checked for new drivers/updates.
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Mar 4, 2014
I am reading up about optimizing of SSD drives and I'm seeing that Windows 8 is supposed to be pretty good with automatically deciding whether to optimize or defragment drives based on what they are (SSD vs HDD). But I have a problem. I just bought an SSD but under the Optimization menu it is showing up as a Hard Drive.
It's a brand new Samsung 840 EVO 500GB and I'm going to be using it solely for music and movies as an external drive. I also bought an Anker external SATA III to USB 3.0 enclosure. I have the drive recognized and everything under the File Explorer but I'm just a little nervous that it's listed as a Hard Drive under the Optimization menu. How can I get Windows to see that it's in fact an SSD?
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Oct 28, 2013
When i power on computer, my usb flash drive isn't recognized right away. I need to re-plug the flash drive every time, when i power on computer, then it's recognized normally.
It's not such a big problem, but I have this usb flash drive always plugged at computer back side.
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Sep 15, 2014
I have Silicon Power Blaze B20 flash drive, which is not recognized by my desktop PC's both USB 3.0 ports. The flash drive's light blinks when pugged in, but no reaction from PC's side. I have tried to plug cord between flash drive and PC, but no change. It does recognize the device when plugged in any other USB 2.0 port. And the device is being recognized by other computer's both USB 2.0 and USB 3.0 ports, so I assume it is PC's fault, but what it is. My PC's USB 3.0 ports do recognize any other USB 3.0 devices - my external HDD, other USB 3.0 devices but this drive.
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Mar 11, 2013
Having problem with a USB drive constantly disappearing and not being recognized?
My current solution is to delete drivers in device manager then wait until they load again. This is a temporary solution. I am using a VivoTab ME400C tablet pc with full Windows 8 in a public environment as a kiosk and users are exporting data via the usb. I cannot ask people to constantly delete drivers before they try an export to a pen drive.
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Mar 16, 2014
The issue is finding the file location for my flash drive. My computer only has 3 external USB ports. I have tried all of them, when the flash drive is plugged in somewhere on my computer it should indicate another drive location. I can't find anything....not sure where to look or if I'm looking in the right place. All that shows is c: drive & E: drive. The E: drive is exclusive for the OS system restore (can't be used; not accessible for anything else). The only other is the DVD drive. Nowhere can I find evidence of the flash drive plugged into the USB.
I have all the essential drivers & everything is up to date [I have a task scheduler & Driver updater software installed. All drivers are up to date. This is a new computer, only 2 months old].
I have gone into device manager & checked all the USB & composite serial bus controllers to make sure they are powered on (my computer has an energy saving management thing & it will possibly deactivate the hubs when not in use). According to the power management settings they are not set to "sleep" but all ports are active. I can't figure out why I can't find my drive, nothing is appearing when I have the flash drive plugged in.
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Aug 15, 2014
Tonight when I plugged my LG G-Pad into my laptop it made the usual audible tone but is now no longer visible. Worked fine about 2 days ago, now nothing.. Interestingly enough it works fine on my desktop (Win 7) and my office computer (also Win 7), but all the sudden it doesn't appear on my laptop where I need it most. I considered doing a restore, but it appears I'll have to re-install 8.1 again, and I'm not too keen on that as it was a nightmare in itself
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Mar 5, 2013
I'm booting off my SSD which is drive C: and I have games and programs on an extra hard drive which was origanally drive H: but after a restart it switched to I: and when I go into Disk Management to change it Drive H: isn't there.
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Sep 19, 2013
I have just bought a 4TB external USB 3.0 hard drive. The plan is to copy all of the data from my current internal 2TB drive to the 4TB, then I'm going to crack the case of the external hard drive open, take the drive out, and put it in my PC to replace the 2TB drive that's in there now (which I know will void the warranty). This isn't going to be a boot drive as I have an SSD for that.
I had read that Windows does not support large drives of this size and that it would show up as 2 partitions, so I was prepared to convert the drive to GPT in order to have 1 large partition. However, I connected the drive up to my Windows 8.1 machine and it shows as 1 large partition of 3.63TB, which is about what I expected.
Does this mean I don't have to convert the drive after all? Can I do what I'm planning to do and everything will work fine? Or do I need to convert it to GPT before I copy all of my data over and if so, how do I do that exactly?
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Nov 7, 2013
I recently discovered that one of my drives has been at 100% activity with no data being read or written. This particular drive is used for virtual instruments and samples for music. I've never had issues before, but I found it odd that loading projects took an insane amount of time to load, which lead me to check the disk usage of this particular drive.
Current response time spikes into the tens of thousands. Again, nothing is being written or read. If I open the drive, I can see all my files, but the drive never seems to stop "searching". I've attatched a picture below:
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Nov 25, 2012
I just installed Win 8 last night and everything seemed fine before I turned off the computer. Now, I'm a student and I work a lot from my USB/HD. I have both my usb and HD connected to the computer but the computer doesn't read them now.
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Jun 9, 2013
Is there a way I can back up my files from my 2tb WD My Passport External Hard Drive? I have a lot of files on there which I want to back up and convert to NTFS.
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Jul 31, 2014
I am having a little trouble with windows disk management. I'm running a custom built rig with a 250GB SSD for OS & Programs, and a 2TB HDD for everything else. The hard drive was previously partitioned however I recently removed these partitions and Extended the main volume to fill the drive, however it is showing up as 3 distinct volumes in disk management (See attached screenshot). They're also Green from some reason and the disk is showing as a 'Dynamic' disk, which I don't remember changing.
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Sep 15, 2013
HP Envy dv7, Windows 8
Seagate 2TB drive mounted in a Thermaltake, Max 5 enclosure. The drive does not show in Windows 8. Does show when running Disk Management (diskmgmt.msc) but shows as "Unallocated" without a drive letter. If run the Seagate drive tools, it shows up as unallocated, with drive letter "C". But there is obviously already a drive "C".
Disk Management does not present a means by which to assign a drive letter
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Aug 10, 2013
I have a Simpletech Simpledrive External Hard drive. It works on my desktop running xp. When I connect to my Asus N56DP Laptop, I hear the binging and all. But I do not see it in my control panel. I can see it in the device manager. Not in Disc MAnagement. Is there something I can do to get it to install and be accessible? I have some race car pictures I would like to post to Facebook.
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Aug 26, 2014
a friend of mine recently brought me a notebook,Medion AKOYA 99380(s6214t). After booting and using notebook for some time,computer reported a Hard Drive error.It said:"Windows detected a hard disk problem. Back up your files immediately to prevent information loss, and then contact computer manufacturer to determine if you need to repair or replace the disk."
The HDD is pretty new and it didn't seem to have any hardware issues. However,I did a clean instal of Windows 8.1 on the notebook(normally I installed Windows on the 64GB SD Card located in the "tablet" part of the notebook,so that way a person using it can use it as a tablet,too). Everything seemed to work fine, no HDD errors from Windows etc.,but then I opened My Computer and second Hard Drive wasn't there.I thought that it's a Drive Letter problem so I went into Disk Management however it did not solve the issue.
Then I tried everything(re-formatting,changing from NTFS to other formats etc.) but it did not seem to work.But all of sudden,after doing something, I don't really remember what I did that made the Computer see it, but it finally worked,so I just started testing everything. And after I used it as a tablet only for a while,I plugged that part in the notebook again and then Windows gave me an option to Update and Restart. I was a bit afraid of how it will turn out,so I wanted to shut down and turn on for a couple of times before updating, just to see if it will cause any issues. When I was sure that it worked perfect before the update, I clicked the option to update.
After the update was finished,Windows ran extremely slow and it detected my second HDD, however not the way it should.It only said "Local Disk (D: ) but I could not access and it didn't show how much memory on it was used. I re-assigned a letter to it after a format,but it did not work. Then I shut down the notebook,pull the second hard drive out,connect it to computer with usb so windows sees it as an external hard drive,and bam,everything worked. I don't think that the HDD is the problem,nor the SATA connectors,it's most likely that the motherboards driver need an update. However,when I checked for it's name,it said "Medion AKOYA s6124t". I tried all the downloads from Medion's page,but no succes in finding a proper driver.
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Mar 30, 2013
PC : Compaq Presario CQ3623L
OS : Windows 8 Pro x64
Problem : Cannot Eject any Portable Hard Drive with Safely Remove Hardware Window. My Portable HD didn't show on Safely Remove Hardware windows, so I cant eject them.
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Sep 15, 2014
I have an external harddrive on a USB2 port that I have been using for ages without problems. Yesterday it just stopped being accessible for no apparent reason. The machine "sees" it (as the F drive) but can't access it. If I try to double click on the F drive the machine takes aaaaaages (green "busy bar" slowly tracking) and then I eventually get an error that says "F: is not accessible" - as per this image:
So I assumed the drive had died. But to test that, I plugged it into my g/f's old XP machine and it accessed the drive with no problems whatsoever!
The only other thing I could think to try was to look in disc management. But even though the is an F drive showing in explorer (as per the above image)... it doesn't even show up in disc management!
So, in exasperation, I did a "refresh" of my system. A bit of a drastic step, but I thought maybe it was time for a cleanup anyway. But, after the refresh was done... STILL the same problem! Exactly as per the above images, the machine "sees" the F drive but nothing is accessible.
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Feb 5, 2014
I am connecting a 640GB Samsung G2 Portable External Hard Drive to my HP Pavilion 15 Laptop.
The external hard drive works on other desktop and laptop computers here at work, but when connected to the HP Pavilion (Windows 8.1 OS) it shows up as a Local Disk (H: but when trying to Open the drive it says:
"Location Not Available H: is not accessible The device is not ready."
What should I do?
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Feb 20, 2014
I was going to reinstalling windows on my computer and i thought put 200gb for windows 8 and and 1300gb can be for windows 7(for gaming), So i install windows 8 and shrink the hard drive size so windows 8 has 200gb. And use windows 7 for gaming but my pc is a bit s#*t and a dont do gaming any more. (only on the ps3).
So can i unshrink or something so i have 1.5tb together for windows 8?
[URL] .....
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Feb 18, 2014
I am running 8.1... recently my second seagate barracuda HDD has just been disapearing from explorer... this is my last resort, after this there is nothing... google is completely useless.. I have bought a brand new sata cable, so thats ruled out, the drive is NOT dead, it works perfectly fine and is 100% healthy. the motherboard is not fried, that was just replaced not more than a month ago. the UEFI BIOS is up to date... basically as i said my drive just disapears.. some days ill be able to see it and access files, the next it will not show up in any program at all... I have tried seatools, it does NOT show up in there... im just about ready to throw this damn drive out the window...
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Mar 16, 2013
I'm currently using a Dell Inspiron 3520 laptop with Windows 8 on it. I have an external hard drive from a Windows 7 desktop. It recognizes the external hdd right away and I can access it but I can't figure out how to boot Windows 7 as the primary. I've tried changing boot order in bios but I've had no luck as it still boots Windows 8 first. Is there a way to use the Windows 7 as the primary drive ? Even a way to temporarly turn off the Windows 8 hard drive will work. I just need to access the Windows 7 hard drive without having to navigate through program files to have to open something.
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Jan 4, 2014
My Seagate Portable Drive seems to work as the green light comes on.
Screen shot of my Disk Management below. Am I missing something?
Other solutions have been to right click and assign a drive, but those listed below other that the C: don't allow.
Using OS Windows 8.1
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Apr 29, 2014
I have a Dell XPS-12 laptop. It's pretty standard, and I only use it for school. I'm a Computer Science major (which is incredibly ironic in this situation... wow), and I partitioned part of my harddrive off, about 32 GB, for a CentOS and then Kali Linux install, first to run a configuration and write some custom code for an open source captive portal my work has deployed and second for testing my place of employments security implementation (boy was it easy to gather some scary data with a simple wireshark capture..). I am extremely busy with being a fulltime student and also working 2 jobs and freelancing web development, and I haven't been able to figure out why after reformatting the partition I was using for the Linux installs, I could never reintegrate that partition into my own Windows partition. It's incredibly annoying as I only have a 128 GB SSD and after screwing with it for ten minutes, said screw it and just made it into a backup drive where I keep all my code and larger ISO images for different OS' I have (after just a year of studying CS, I've had to use a total of 6 different Linux OS', as well as messing with trying to get an ArchLinux install up and running correctly... I'm starting to feel like a collector)
why my harddrive is being super lame and finish that matrix for the Software Packaging class' final it's pretty obvious which I'm going to go with. Problem is, now, I'm starting to do a bit of freelance security consulting here and there, and I need to have a portable Kali partition with me. I also need to shrink the partition, but when I do I can never put it back into my main Windows partition so there really is no point.
Also, I'm running windows 8.0 right now, but I've had 8.1 before and the fixes still didn't work.
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May 11, 2013
I have a USB hard drive which has two partitions:
1 x 100GB partition formatted as FAT32
1 x 900GB partition formatted as NTFS
(these sizes aren't perfectly correct, but it's a 1TB drive that's split in 1:9 proportions)
On my Windows 7 laptop, both partitions are visible in My Computer, and I can read/write with no problems. (On the same laptop, an Ubuntu install can also see and use them perfectly)
On my new Windows 8 laptop, the 100GB FAT32 patition appears under My Computer normally, but the 900GB NTFS partition does not. If I go to Computer -> Manage -> Disk Management, I can see the partition. It has no drive letter or file system listed, reports as "healthy, primary partition" and shows 100% free space. If I right click on the drive's entry in the list, my only options are "delete partition"; everything else is greyed out.
So, to summarise: One hard drive with two partitions. Both partitions work perfectly in Win 7 and Ubuntu. Win 8 can only see the FAT32 partition, and treats the NTFS partition as if it is junk.
way to persuade Windows 8 to mount this partition? I know that the drive and partition are fine, but for some reason Windows 8 isn't interested.
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Jan 24, 2014
i installed win7 on my SSD (like 22gb drive) in my asus today. Now, under my computer, it shows nothing but the SSD. it doesn't show my 500gb hard drive.. Im pretty sure its because of something i didnt do in the setup. What should i do to get it to show up? i really really really don't wanna re install windows because i got all the drivers and installed programs..
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Oct 18, 2013
I've just built a new computer that has a 2nd hand HDD as the secondary drive. It was causing messages to appear like "Hard drive failure imminent - do you want to back up the drive". Since I was still setting up everything on the primary drive I disabled the messages by clicking "Do not show these messages again". Now I realise I should enable the message and remove the offending HDD. I'm running windows 8.1.
How do I re-enable these messages?
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