USB 또는 Firewire 드라이브를 위한 드라이브 문자 없음
당신이 당신의 컴퓨터에 당신의 USB 또는 IEEE 1394년 (Firewire) 기억 장치 (하드 디스크 또는 USB 드라이브) 연결할 경우, USB 대용량 기억 장치 장치를 보여주어서, 그리고 그 때 디스크 드라이브 찾아낸 통보 메시지가 창에 의하여 갑자기 나타날 것이다. 당신이 그것을 가능하게 하는 경우에, 그러나, 당신은 다만 간단하게 드라이브에 접근할 수 없고, 너무 "Autoplay" 자동 길잡이가 없다.
USB 또는 Firewire 저장 드라이브는 Windows Explorer 또는 내 컴퓨터 창에서 비록 드라이브가 동일한 컴퓨터에서 전에 제대로 이용되더라도 검출되더라도, (유효하고 그리고 접근 가능하다) 나타나지 않는다. 디바이스 매니저에서는, USB 허브와 USB 뿌리 허브를 포함하여 모두는, 제대로 일을 보여준다. 어떠한 경우에는, 그것은 또한 붙어 있던 작동하고 있는 USB 또는 Firewire 저장 드라이브를 및 드라이브를 보여준다, USB 또는 Firewire 드라이브는 Microsoft Management Console (MMC)에 있는 컴퓨터 관리의 디스크 관리에서 역시 나타나고.
문제에 또 다른 증후는, "안전하게 제거한다 기계설비" 아이콘 나타날 것이다 당신이 USB 또는 Firewire 드라이브를 삽입하는 때 이다 창 통보 지역 (체계 쟁반)에서. 당신이 아이콘에 double-click 때, 드라이브는 명부에서 나타난다, 그러나 당신이 디스크의 세부사항을 (드라이브에 double-click에 의하여 또는 드라이브를 선정하고십시오 정지를 클릭하십시오) 표시할 때, 드라이브에 붙어 있던 드라이브 문자가 없다.
이 문제를 위한 원인은 모든 드라이브 문자가 추가적인 드라이브 문자를 이용할 수 있게 하는 다른 장치 또는 지도로 나타난 네트워크 드라이브에 이미 할당되지 않는다 이다. 또는 그것은 지도로 나타난 네트워크 드라이브 또는 다른 기억 장치에 의해 드라이브에 이전에 채택되었었던 할당한 드라이브 문자에 기인할지도 모른다.
해결책은 지도로 나타난 네트워크 드라이브 또는 다른 기억 장치를 차단하기 위한 것이어, 추가 기억 장치에 할당하기 위하여 드라이브 문자 또는 이전에 할당한 편지 높은 쪽으로 해방한. 당신이 MMC 디스크 관리에 있는 드라이브를 볼 수 있는 경우에, 권리는 그것을 클릭하고, 변화 드라이브 문자와 경로를 선정하고, 변화를 클릭한다. 사용되지 않는과 누르기 OK인 드라이브 문자를 선정하십시오. USB 또는 IEEE 1394 드라이브는 지금 접근 가능할 수 있다.
또한 가능하다에 기입을 통해 자유로운 것에 변화 드라이브 문자.
중요한: 이것은 보장 없이 "있는 그대로" 제공되는 기계 번역 페이지이다. 기계번역은 이해하기 곤란할지도 모른다. 참고하십시오 원래 영국 기사 가능한 언제든지.
공유하고 공헌하거나 기술지원을 얻고에 도우십시오 나의 디지털 생활 공개토론.
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Entries (RSS)
August 15th, 2008 18:00
Anthony Maw post #31 - thank you, you’ve fixed my problem. Am on Vista and updated to Vista SP1 when a previously recognised external USB drive doesn’t show in Explorer anymore. Followed your instructions re: Show Hidden Devices and it worked! So thanks again.
August 6th, 2008 10:24
Funny thing is that I went into MMC and accessed the drive via right click / explore… never thought to look for a conflicting drive letter. But you were right on the money. Thanks!
July 22nd, 2008 23:22
This was exactly the information I was looking for. I knew what the problem was but I didn’t know where to change it. Thank you.
June 11th, 2008 04:27
the article described my problem to the t but the solution was one i had already attempted and which had failed. after going through disk mgmt and assigning a drive letter i am able to explore it ONLY through disk mgmt, it still will not show up in my comp or explorer. furthermore, when i disconnect my usb drive and reconnect it later i have to follow the same procedures to access it, additionally, the letter i had previously assigned to it is no longer available in the drop down menu of available letters. the device works fine on all other computers and OS’s, i’ve had this problem for almost a year with no solution. and no, i have no other drives interfering, just the c: and a cd drive. any help would be appreciated
May 26th, 2008 08:09
Great article. It is well written, gets straight to the point, and best of all, solved my problem. Thank you.
April 30th, 2008 03:22
No Drive Letter for USB or Firewire Drive article…Thank you. This article really helped. Have a great day!
April 17th, 2008 03:46
The problem has two possibilities: One is that a mapped drive letter supercedes the physical drive letter that Windows wants to assign. The solution is to change the highest mapped drive letter, like E: or F: drive to a letter lower down like G: or H: and then remount the USB drive. This issue is documented on a M$ KB. The other possible cause of the problem is that the volsnap.sys driver does not recognize the external USB device volume and thus does not assign it a drive letter. The solution is to open Device Manager, click View and then Show Hidden Devices. Down the list under Storage Volumes there is an Unknown Device. Right click on it, select Update Driver and let it automatically search. It should reinstall the drive as a Generic Storage device and then correctly assign a drive letter after that.
April 17th, 2008 03:44
The problem has two possible causes and different solutions:
One is that a mapped drive letter supercedes the physical drive letter that Windows wants to assign. The solution is to change the highest mapped drive letter, like E: or F: drive to a letter lower down like G: or H: and then remount the USB drive. This issue is documented on a M$ KB.
The other possible cause of the problem is that the volsnap.sys driver does not recognize the external USB device volume and thus does not assign it a drive letter. The solution is to open Device Manager, click View and then Show Hidden Devices. Down the list under Storage Volumes there is an Unknown Device. Right click on it, select Update Driver and let it automatically search. It should reinstall the drive as a Generic Storage device and then correctly assign a drive letter after that.
Anthony Maw, Vancouver, Canada
mailto:anthony@maw.bc.ca
tel/sms +1 604 318 9994
March 18th, 2008 13:00
This information really helped. My TSonic 610 MP3 player was not getting assigned a drive letter on Windows XP. I followed the instructions and went to Disk Management and assigned a different drive letter to the MP3 player. The problem was that the drive letter was already in use by a mapped network drive. Thanks a lot for sharing this information.
March 15th, 2008 20:01
I had a similar problem and I was able to resolve it. I found that the USB port connecter was not making complete contact with the hard dsik drive. I pressed it a little hard until all the pins were inserted completely. Then I plugged the USB cable to my computer and was able to see it in device manager in “Not initialized” status. To initialise it I had to format the drive and lose all the data in my external hard disk.
If I can remember correctly I noticed this issue after my computer crashed and after restarting my computer, it was running the disk check program which was deleting some indexing or something like it. These files were part of my external hard disk.
December 1st, 2007 12:46
I installed a new 120 gig Seagate hard drive with OEM install CDs from IBM/Lenovo for my Thinkpad. I’ve spent three days trying to solve this problem; I have tried the registry solution presented here, the disk management solution, using Acronis Disk Director Suite, and anything else I could find on the web TO NO AVAIL. I tried to delete the keys and that worked, but once I try to plug in any type of non-hard drive based device Windows XP Pro acts like a blind man with Alzheimers: it thought my USB flash drive was a PCI MODEM!
If I switch back to my trusty Fujitsu (which used the same system restore CDs by the way) everything is detected with no problems. WTF. Seriously Microsoft, go poke your eyes out with a stick. You won’t even stand behind your own product- charging $99.99 - $550 for incident support is worse than highway robbery. It’s like selling cars without a steering whell and charging for brakes. Keep it up and this life-long PC user who has less and less time for foolishness will buy a Mac. That’ll teach you. (yeah, I know it won’t, but it felt good saying it…).
November 29th, 2007 04:24
Ok, here is my usb problem
I have a user that when you insert his USB device it assigns it to a network drive. I go into the computer management and change it to another drive. It see it fine. I then plug in a new usb device and it once again reverts to the network drive. I does not keep the setting for the USB that I had assigned to it. It is on a windows XP environment and the system is locked down so that users cannot access the internet without prior approval. The user has had access with the usb drive in the past and I can change it but only for that USB drive. I have gone into administrative tools, computer management, service applications, services, MSsoftware shadow copy provider, then start-up type: set to “automatic” and the service status I clicked start thinking that this might work. It did not. Anyone with a suggestion as to how to solve this I would greatly appreciate it.