Windows 7 not detecting usb drives




















If your USB drive is not partitioned, initialized or assigned letter, it will not be detected by Windows. Therefore you should partition it and assign drive letter. It has many particle features to manage your disk. Locate the USB drive and right click it. Select Initialize Disk. If the drive is unpartitioned, it is actually full of unallocated space. You can try to create a new partition on it. If the USB drive is still cannot be detected in Windows 10 after initialization, assigning drive letter, creating partition, you can consider formatting it.

To make a summary, you can have altogether 5 methods to fix Windows 10 not detecting USB issue. Find the one that works for your situation. Method 1. When Power Option opens, click on Choose what the power button does. Click Change settings that are currently unavailable. Find Fast-Startup option and disable it. Details required : characters remaining Cancel Submit 4 people found this reply helpful.

You're not going to believe this And I did I received the same error as you This makes them somewhat useless as a bootable USB Flash The fix for your problem is to buy something other than a new SanDisk Check out this link for a bit more info I though that there was a way to select what type of drive it would be listed as, but apparently not. Lamak Qutbuddin Maimoon. This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread.

I have the same question Report abuse. Details required :. Cancel Submit. How satisfied are you with this reply? Thanks for your feedback, it helps us improve the site. Remove the computer from any port replicator or docking station. Then reconnect the USB devices one by one. If you are using desktop : 1 Turn off the computer completely and disconnect the power cord from the back of the computer. Make sure you can see these files listed: there could be other files usb.

If you have another computer with all the USB ports well functioned, look for the files in that computer, copy and paste them here. You can find the files by searching with the name of the files.

Download the files usb. If necessary, you can also do a reboot. By Sophie Luo. After clicking "Manage discs" I had blue bars for old discs and black bar for new unseen disc. I right clicked, did not get the menu described above but had the option to make a simple partition or less simple but in different words. Windows then suggested size, format and drive letter.

I accepted defaults, the bar turned blue and explorer recognised the disc. I was driving myself crazy trying to access my external drive. Your advice really worked. I had been struggling with all sorts of USB Mass Storage issues and was even considering re-installing my computer, but Rob's solution of restoring usbstor. I tried this but it did not help. My usb drive is listed under devices and printers but I can not access it.

Tried this but it did not help. My new usb drive is listed under devices and printers but I can not access it. Yes, the new PC 'notices' the drive but does not recognise it or assign it a letter, nor can I open it. Driver update didn't work. Also, there was an uncomfortable clicking sound coming from the external drive when plugged in, as if the PC was trying to access it but unsuccessfully.

The solution was supremely simple and it worked for me on my systems. It may not work for everyone though. I have no idea what the difference is between the two. And I had plugged my external drive into the USB hub. Then I got the problem. Couldn't access or open the external drive. Updated the driver for the external drive, did that from the old PC. Back to the new PC, still nothing, same situation. And, lo and behold, I was in business again!! Everything worked beautifully, the way they should.

Without having to do any kind of reconfiguration, workarounds or system tweakings. Haven't tried it yet but it may also be possible to include the external drive as a device added to a network or homegroup.

I can see and access the external drive from my new PC, if it is plugged into my old PC. I'm actually using ole Windows XP and am having a similar problem. I popped out a circa laptop hard drive yes, there were laptops then and put it into one of those external enclosures that provide a USB connection.

I'd used it before with other laptop hard drives with no problems. Usually when a device is detected it appears there along with the C drive, etc.

I have tried refreshing. I have the manual but I can't figure this problem out. It worked for me too :. Must be a bad installation of the driver. So don't be afraid to uninstall it, it will just reinstall automaticaly because it's an USB device. I just want to share with the community how I solved the problem. I did read all the entries and posts here, and from some other sites. I tried with many of them and nothing solved the original problem: my Iomega USB 2.

I previously backed up all the information on a XP computer, then reformatted the drive. After that, I could work with the drive. Open Windows Explorer and right click on the LaCie drive which is my external drive and go into Properties. Ok out. Thank you thank you thank you I've been battling with 3 external HDD and changing drive letters, thanks to you, has sorted my problem out.

I fought with Windows7 when I plugged in an external hard disk that I made up recycling an old laptop hard disk.

In Disk management I can see the drive, but it was not shown in "My computer". I could not rename it immediately grey option. After delete.. Some time, my pendrive or external HD is disconnected, when reconnect it, not show it under "my computer".

Not assign letter. Any partition software can see it, but cannot assign a letter. Device manager show it, but cannot populate a volume.

This issue persist until reboot the system. No driver problem, is only a disk manager problem. I have a lot of diks 5 HDD and 3 external drives. But once u go into Device manager, u need to click on Disk Drives in case of a External hard drive. I used Linda Yan's solution and it fixed my problem. My question now is, should I backup the registry to restore that key modifier or just leave it out? The system seems to be running fine without it and nothing is complaining.

I only had the lowerlifters value, but I'm wondering why it was there if it isn't needed and what if any, exposure I have without it. Resolution :. I got weird problems with the same symptom. Disk Manager connecting to Virtual Device Everything runs perfectly until I attached it back to my Windows 7 as above said. This problems happens to me couples of time with some HDD of other sizes. The only solution is to unload those files to NAS, reformatted and recopy, which takes 1 day.

Only Microsoft Windows 7 can't see it own child. It will show a list. Right click that and. Hope everyone had a wonderful Turkey Day and that y'all aren't all wiped out from standing in line at your retailer of choice all night! I have a similar but slightly different issue with W7. I'm using a Bytecc USB Adapter See here if, perchance, you're not familiar with this doo-dad to see what is on a couple of old IDE hard drives and to determine whether to use them in another project.

I tried the solutions in this thread with no positive results. Rather, what I'm facing is in Disk Management, where my only option is to initialize the disk which, of course, defeats the purpose of my "experiment. But I am a little worried that it'll just be "same problem, different cable" and that I spent the afternoon rearranging my desk to crack open my case My IOMEGA external hard drive does swith the light on and is working because I can feel it vibrating a little and heats the normal way as if it were working like it used to.

I jut swithed it of to 0 and then back to 1 because I was safely removing a pen drive and didn't want to remove the wrong one so I did that and when I turned it on to 1 again nothing happened. The light switched on and you can feel it working and launching xcept not on the PC.. I'm using Windows I have all my pictures and all my important documents on it! What if I have no clue where I have that CD that came with the drive..

Cannot just assign a dif. I can see the light on and feel it vibrating like it's working and like it's launching but nothing happens not even as an unknown device.. My Toshiba GB portable hard drive is not showing up. Have tried different option mentioned in this forum. The data that is there is very important, and I will like to save it. Can you tell with the above information if the data is there and is not lost. And also I havent tried the uninstall option of the drive, because I am not sure if doing this I will definitely loose the data.

Try to unplugg the disk, restart the computer and plug in again. U can uninstall the driver, this no affect the data. After restart, and plug in, driver reinstalled it self. Or try to use any disk partition software to see if data still there, or plug in another computer, or download a linux boot cd and restart with them to see the data.

Note your hard drive will get formatted. I installed the drive into a nexStar 3 external 2. First, it took forever to get the enclosure to be recognized, at all.

I had to take the USB 2. Yet, there was no disk drive identified in Computer. I followed the advice given by Lionel B. The happy ending is I followed your advice and, after a few trials and errors, I was able to create a dynamic? Manually right-clicking on the drive here, and selecting Change Drive Letters and Paths A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.

Code 52 i cant see my usb drive to perform format can anyone help me I have a similar problem with my WD1. It was working great on Win7 64bit pro for 12 months. Then it just stopped working. There has been a power outage during a thunder storm, not sure if this is when it stopped working. Can see it in device manager, but not in windows explorer or in powerdesk.

When I open Computer Management and go to disk management, it comes up with a message to initialize the disk. It is not listed in the top section of disk management, but is in the lower section.

It is described as unknown, not initialized and as GB under Disk 2. Where it should have a drive letter, it just gives Right clicking on it only gives properties or help. In properties, under Volume it lists:. Disk: Disk 2. Type: Unknown. Status: Not Initialized. Capacity: MB. How can I initialize it, or do I have to use partition software? I really want to recover the data on it and would prefer not to reformat it until then.

I took ownership of the folder, assigned myself full access then pasted your suggested usbstor. To those who use this suggestion - you may find that the USB device still does not show in "My Computer".

In my case, the issue was my PC. I'm having the same problem on my work computers. Frustrating to no end with something as simple as plugging in a USB. I see all of the answers people offer just follow steps 1 - 8 and if that doesn't work try steps 1a-6b and if that doesn't work This is ridiculous.

It worked for me. None of the solutions in this post work for me. Next I tried a another memory still and it showed up as unknown device. Once DevicePath was set correctly all memory sticks automatically installed themselves. At least I only lost Gigabytes of work, files, family video and photos over the past 18 months.

In the Computer Management window, under Storage, click on Disk Management to see a list of drives connected to your machine. Right-click on the drive and select Change Drive Letter and Paths. Now click on the Change button….

You can select from a list of drive letters to rename it. Pick a letter toward the end of the alphabet for best results.

You will be prompted with a warning dialog making sure you want to change the drive letter…click Yes. You will also see the drive in Computer now and be able to access the files and programs from it. When plugged in , it detect as local disk in my computer but it didnt display how many gb used and the blue bar at all. I tried to chkdsk on command prompt with adminstrator and it is stuck at The type of file system is NTFS.

When i go to disk management under computer management it is stuck at Connecting to Virtual Disk Service. When i unplugged , chkdsk and disk management works Can someone solve this problem please?

For those of you shipping files between Mac and Windows machines: Mac formatted drives should work fine in Win7, but hey, if they don't Tried the usbstor. Somewhere along the way I spotted the option to reformat the disk, which led me to believe that perhaps, contrary to common sense, my Win7x64 install was unable to read this disc because it was Mac formatted. It's free but only lets you read files. That said, I'm very happy since it works like a charm, even offering to rename filenames containing characters Windows doesn't support.

Hi, After reading many forums and experiences, I have come to what I think is the best option available. By now I have no doubts that the defects concern a failure of the hard drive material poor quality and is a common theme among, as far as I know, all LaCie drives I am owner of various products of this brand - and on my way out of this firm. So, for you souls to happen to be stuck with it and the only thing you want for now is to recover your valuable data, let's focus on that and once achieved, please get yourself another drive for pretty much any other brand available except this LaCie B-S!

Control Panel 2. Administrative Tools 3. Computer Management 4. Storage - Disk Management 5. Select your LaCie hard drive from the bottom half of the pane probably Disk 1 6. Right click, Properties 'Change drive letters and paths', and add a letter, e. Download HandyRecovery tool: www.

Let the program scan for the LaCie hard drive and once finalised, select your data to be recovered from the left pane. The main point here is that once a letter is added, you will be able to see LaCie drive K for instance, in Windows Explorer, but you will notice it is empty, no contents. The trick is that at least it shows as a drive in Windows, which is exactly what HandyRecovery needs to initiate the scanning of the drive's surface.

Worst case scenario, you will not be able to recover any file but at least you will see a full directory tree view of the drive, full list of files, directories and its contents, i. That's it. Hope you will find this useful. Sergio London, UK.

Only difference was that after I plugged in the USB storage I had to go to device manager and update the driver. Thank you very much Ivan. After scouring the web for days searching and trying everything, this finally resolved my USB driver install problems.

Any relatively new USB device would not install the driver properly and would fail. I also noticed the file was inappropriately named, usbstor. Not sure why or how that happened. I copied and pasted your text above, created my new usbstor. Worked like a charm. Nothing worked. I let my computer sit around 30 minutes to more, this was so I did not have to do this again because I did not wait long enough. I also have the issue of the invisible disk, in Win 7 Pro I have spent a good deal of today on the manufacturer's site which proved to be no help.

The drive is less than two years old but isn't even mentioned. I have also followed and applied a great deal of the advice given above. A big thanks to all of you. However I am still stuck. I have tested and proven my USB-2 cables. The disk itself works fine on four other PCs. I have checked out my on-board USB-2 ports with other devices. They all work fine. When I attach the device, the Windows message plays as the pop-up installation message displays. The installation completes successfully - or so it says.

My drive appears in "Devices and Printers". I learn there that it is attached via an "Initio Default controller" - whatever that is.

However it does not appear in Device Manager when I look there. Until, that is I turn on "Show Hidden Devices". Then I can see it as a drive. I attempt to update divers, including with the tricks described earlier. When I switch off "Show Hidden Devices" it still appears in the list 'i.

As mentioned above. So I check out the drivers. All are supposedly up to date. What I do not have in Disk Management in this sea of perfection :- is any entry for my drive either in the top physical disk list or in the detailed boxes blow.

A disk Rescan has no effect either. Clearly I have repeated all of this with many variants over the course of the day. All to no avail. It searched for a while and then came up saying the driver wasn't digitally signed or something similar to that and was I sure I wanted to proceed. I said Yes and whammo It worked and I don't know how much to thank you. I have been toiling with this issue for quite some time.

I was about to take it to a technician. You saved me Thank you so so much. I had a similar problem. I did about the same as Lionel with only some differences:.

I Have had a few external hard drives and this seems a common problem once in a while - I'm no expert but logical thinking can get you places. Luckily I never tossed those hard drives in the trash - that I thought were cooked or corrupted beyond repair.

I have retrieved all my data from 5 so called corrupted USB hard disks this way. So it seems the interface circuit between the actual hard drive and the USB is the weak link.

Not sure if the reason"s" are Microsoft Driver related or 3rd party related but good luck anyway. Have tried everything on here but still having a problem. The hard drive on the 2TB desktop crashed but I had just made a full-image backup three days before using Norton Ghost So, I figure I'm home-free. The laptop still recognizes the Fantom just fine; the desktop "sees" the drive in either USB or eSATA mode , and the Computer Management app sees the drive, has assigned it a drive-letter, and if you click on "Properties" it shows the amount of disk space available, and other details.

I tried making it an "Active Partition", and it said it was active, but still unable to open it. When I plug it in and the dialogue says "Open Drive" all I get is a message that "It's inaccessible". I tried going into the Security Tab, taking "Ownership", setting the permissions to "Full Control", as well as checking all the other permissions.

Since the Ghost backup file on it is too huge to copy to the hardrive through the network-link to my laptop, and still have room to restore it, I'm up a creek.



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