usb mass storage divice

Apple Mobileme (full product)
March 18, 2010 at 10:31:17
Specs: Windows XP
why appered usb mass storage divice not regonized?

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March 18, 2010 at 11:25:07
There are references to things in Windows in this, but similar applies for ANY operating system.

If you cannot read English well, say so, tell us which language you read best ( French ?) and I could refer to to a free online language translator you could use.

USB devices may not work correctly when they're connected to certain USB ports e.g. ports in a hub or on the front of a desktop case. If you have a desktop computer, you may have an IRQ sharing problem you need to fix, or your power supply may be starting to fail.
See response 3 in this:

Also - if you are using a USB extension cable, some of them have inadequate wiring and will not work properly with some USB devices.

In addition, all external drives connected by USB require that the port (or ports) they connect to can actually supply 500ma of current.

USB external hard drive requirements.

See Response 9:

The flash drive (or external drive, or memory card reader) must be plugged into a port it will actually work in.

How to tell if the flash drive (or external drive, or memory card reader) is properly recognized as a hardware device, even if you can't access it's data.
Programs you can try to recover your data, if that's okay.

The most frequent reason people can no longer access the data on a USB flash drive, USB External drive, or a memory card on a computer

See Response 2:

Unless the instructions for installing a device tell you otherwise.......
You DO NOT install drivers for a device while booting into Windows, if the software for the device has not been installed yet - when Windows detects a generic device while booting, you allow it to search for drivers, it doesn't find any, and it wants you to show it the location of the drivers - CANCEL that, continue on to the desktop, and install the software for the device using the proper installation from a CD or the proper installation file that you downloaded from the web.

If you DID install drivers that way, go to Control Panel - Classic View - Add/Remove Programs and Un-install the software you installed, reboot, DO NOT install drivers while booting, and install the software the right way !

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