Re: USB device malfunction

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There is just a quick yellow flag and then it disappears when the unknown
device goes under the USB Enhanced Host Controller
"Chuck" wrote:

I'm wondering if there is a USB driver issue. I believe the SIS Controller,
etc. uses a unique driver set.
Are there any yellow flags in Device manager?

"Enhanced SIS PCI to USB Enhanced Host Controller"


"Murphski" <Murphski@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:A9500D61-8FF9-44D0-B53E-9A24128AC484@xxxxxxxxxxxxxxxx
When I have the device manager up I plug in the printer or flash drive.
It
will first show up quickly in Network adapters as other devices and then
it
goes beneath the Enhanced SIS PCI to USB Enhanced Host Controller and
shows
up as new hardware but an unknown device.

"Chuck" wrote:

So the unknown device message occurs for anything you plug into the USB
ports?
Do you happen to know if this happens on ports attached to one USB
controller, or more than one controller?
I cannot answer your question about the "iPod" as I don't have one. The
following url may be of some help.

http://support.microsoft.com/search/default.aspx?mode=a&query=unknown+USB+device&spid=1173&catalog=LCID%3D1033&1033comm=1&res=20

"I just wanted to note that anything that I plug into
the usb ports will bring up the unknown device message. That is way I
wondered if my daughter downloading music on her ipod could have been the
reason for some corruption."

"Murphski" <Murphski@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1077808B-2B53-4536-919A-8D0AF8C99563@xxxxxxxxxxxxxxxx
I am using the 32 b XP. I just wanted to note that anything that I plug
into
the usb ports will bring up the unknown device message. That is way I
wondered if my daughter downloading music on her ipod could have been
the
reason for some corruption.

"Chuck" wrote:

At this point, it seems that everything works except for the printer.
The symptom (unknown device) basically says that the printer is not
recognised as a known device, and software telling windows what to do
with
it is missing or corrupt.
This can be because the existing printer drivers are not working
properly,
or perhaps were not reinstalled. In some cases, an .inf file may be
part
of
the problem.
Disconnect the printer from the USB port. & Reboot
Uninstall the existing printer drivers, if you have a source for
replacement
drivers. (Download, current printer CD , etc.)
See if the printer OEM has a "cleanup utility that is available for
download, and if appropriate, use it.)
The next thing to do is to go into safe mode, look using the device
manager,
see if there are left over or multiple printer related entries, and
most
likely remove them.
Reboot again.
Install the printer drivers from the download or current driver CD
At some point, you may be asked to plug in the printer. follow the
directions exactly. If not, when the driver install completes, you
will
likely be asked to reboot.
After the reboot/shutdown, if the printer is not connected, connect it
to
the usb port. Restart/power up, whatever. The printer should be
recognized,
and with possibly a couple of iterations, that may involve an
automatic
restart, be recognized, and functional.

It is also possible that there is some sort of hardware issue with the
printer. If this is suspected, and all else fails, you may have to try
getting it to work on another computer. You are using 32b win XP, not
64b
right?


"Murphski" <Murphski@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:14A79C7D-5290-406E-AE0F-3913FE0C416C@xxxxxxxxxxxxxxxx
I followed all your instructions; Everything came back up but the
unknown
device also came back up when I plugged the printer back into the
usb
port.

"Cari (MS-MVP)" wrote:

Go into the Device Manager and uninstall the USB Controller Hubs.
Reboot
the PC. If all is running well, XP will redetect and reinstall the
USB
drivers.

If it does not redetect the USB ports, then they might have died.
You
can
easily purchase a PCI card with up to 5 USB ports on it, install
that
and
you will have new USB ports. I have had a motherboard where the
USB
Controllers on the board have died.... Rather than replace the
whole
system,
I just added the card and gave it new life.
--
Cari (MS-MVP)
Windows Technologies - Printing & Imaging
http://www.coribright.com/windows


"Murphski" <Murphski@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1940FD77-207B-4BC8-A76C-2F5CDB48FF4F@xxxxxxxxxxxxxxxx

I have the antivirus and I have run a full scan. The usb ports
are
still
not
working.

"Cari (MS-MVP)" wrote:

It could be either.... but why on earth are you surfing the web
with
no
antivirus software installed. A/V software that updates itself
daily
is
100% essential in this day and age, especially when you have
teenage
children online.

The very first thing to do is to purchase antivirus and run a
FULL
scan
with
updated signatures. Try NOD32 from www.eset.com, it's what I
have
on
ALL
my
PCs, and it will catch anything nasty that may come your way.

Once you know your PC is clean, then we can work on getting the
USB
ports
working again. BTW the only 100% guaranteed way of getting that
PC
clean
again is to completely wipe the hard drive, format it and then
start
again,
installing Windows from the CD with the loss of all data that
you
have
on
the hard drive(s) right now.
--
Cari (MS-MVP)
Windows Technologies - Printing & Imaging
http://www.coribright.com/windows


"Murphski" <Murphski@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:7D3E760E-8ED6-483F-94A4-7D33189701DB@xxxxxxxxxxxxxxxx
In April we installed a new HP Officejet J6480 All-in-one
printer;
everything
worked great for about a month. We started getting a unknown
device
and a
usb device malfunction message. None of the usb ports worked.
We
took
it
to
a technician who did a diagnostic test on our computer. He
said
the
only
thing wrong with the computer was a few viruses which he
removed.
We
brought
computer home; printer and all usb ports working and then a
few
weeks
ago
the
usb device not recognized by windows because of a malfunction
message
came
up. The printer and the usb ports are no longer working. Is
this
problem
caused by my daughter downloading music with a virus in it or
is
it
a
hardware problem. I have the one care and really do not want
.to
keep
taking it to a technician every other month to fix the problem













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