Devices USB

Class Windows | Help for users: : Beginners

With arrival of the connections USB

The devices of storage that connect to our team (reads one: Memories flash, pendrive, disks usb, mp3s and so on) is increasing day by day. Usually is as easier as connect to a port Usb and accede to the new unit that us has added Windows give birth accede to this new device.

Assigning the following letter of unit free that have our system.
Once connected the device one can change the letter allocated to the unit from the Administrator Disks diskmgmt.msc

This be cost for most of devices Usb (some require the installation of the driver corresponding) because Windows comes with drivers charged for these devices.

In the teams old with the connection Usb 1.1 (speed of transfer 12 Mbit/ s,) depending on the device that connect, Windows us warn that can work to bigger speed connecting the device to a port Usb 2.0 (speed of transfer 480 Mbit/ s )

If not have ports Usb 2.0 our team and want work to bigger speed of transfer be able install a new card with ports Usb 2.0. In a team portable is a lot plus complicated have these ports if not them have because not prune install easily new cards.

Once finished our work with the device ‘ expel’ the device before extract him from our computer with the corresponding icon that us appears down to the right to the side of the clock.

Microsoft advises use this method to extract our device (though most extract the device without arrest him before badly done.) If not stop before run the risk of that exist files open and problems of writing on the device and above all that Windows not one informs about which the device has been recalled of the system.

If not us appears the icon of Remove hardware with safety can force that appears by the commando:rundll32.exe shell32.dll, Control_RunDLL HotPlug.dll

This us take to a window where stop the device what of it can extract him.

Once stopped the device Windows us notify that can extract him with safety.

If us us appears the message of Is sure remove the hardware possibly have to install the patch 883517 Of Microsoft.

Possible problems

This serious in the world perfect but to the be many the devices and (above all) the state of our Operating System many times meet with problems so Windows detects our device Usb.

Him despite have to have bill is that the driver of the port Usb (not of the device) is correctly installed in our system. This him verify from the Administrator of Devices the better method of accede to this tool is run in Beginning >> Run >> devmgmt.msc

To the expand Controllers of bus series universal (USB) see the drivers of the ports installed in our team.

When connect the device of storage Usb Windows install the drivers corresponding to this device in the section of Units of Disk.

If here have some symbol on the icon of the device Windows us be indicating a problem with this device.

Most of the times that have this problem happens that Windows not has the drivers or these not are correct thereby not can install the device of storage. Have to appeal against the web of manufacturer (or against the Cd Rom proportioned) to provide to Windows the drivers corresponding.

Devices ‘ Ghosts’ Usb (and others )

As already have commented Windows every time that connect a device us load the drivers of this device but not them remove when remove the device. So one ‘ saves’ get back to load them when him get back to connect. Is a good system of work provided that not us causes problems.

Him despite have to do is equip show the devices hidden.

Have to keep the tracks of that constitute
Devices hidden in Windows Stops see the devices ‘ ghost ’

The difference is important, without the variable devmgr_show_nonpresent_devices established these be our disks Usb connected.

And with the variable mentioned these be who one see each other:

Have to desinstalar those who are in tenuous (ghosts) of our system for which Windows the next time that them connect returns to install the drivers corresponding.

Avoiding that connect Usb to our team.

The driver of the devices Usb one loads thanks to the file usb.inf that this in the folder C:/ windows/ inf if remove permissions from reading to a user of our system east not can install devices Usb. A good way of avoid that connect any Usb to our computer. More info

Expect have you helped.

Per 14 June 2007. 2.298 readings

Labels Disk , driver , MP3 , USB

(2 votes, stocking: 5 envelope 5 )

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