Re: ApUsbPnp hanging at shutdown

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

Martin Murray wrote:
OK, it is not because the USB ports went to sleep and it is not malware as far as I can detect. It is also not because the LAN went to sleep, 'cause I turned that feature off also. Additionally, I reinstalled the ATI video drivers.

The problem still occurs. What the heck is ApUsbPnp???

"Elmo" <elmogeek@xxxxxxxxxxxxx> wrote in message news:eh9qOn2uHHA.3660@xxxxxxxxxxxxxxxxxxxxxxx
Martin Murray wrote:
Actually, it MAY be the problem with a device being shutdown to save power, even though the laptop is on wall-juice. I have disabled that feature in Device Manager as you recommended, and we'll have to wait to see.

I connected a USB hard drive at one point and the system did not see it until I rebooted, indicating the post may have been asleep.

Where do I find an online malware scanner?

"Elmo" <elmogeek@xxxxxxxxxxxxx> wrote in message news:O9FnU8puHHA.1168@xxxxxxxxxxxxxxxxxxxxxxx
Martin Murray wrote:
AdAware 2007 did not find anything suspicious in the system and I have been VERY careful besides. I don't tthink it is a trojan horse.

"Elmo" <elmogeek@xxxxxxxxxxxxx> wrote in message news:OiCGb9cuHHA.4476@xxxxxxxxxxxxxxxxxxxxxxx
Martin Murray wrote:
OK, I did a clean install of Windows XP on my Fujitsu N6010. I installed all the device drivers from Fujitsu and have done every Windows Update. None of the devices appear to have complaints.

There is a USB mouse attached to the laptop, but both the mouse and the internal touchpad are enabled and working.

Periodically, and I think this only occurs after the system has been on a while (and maybe only after the screen blanks after inactivity), things begin to go wrong.

Graphics begin to get flaky sometimes, the LAN stops working sometimes, or maybe the Start button brings up a garbled list of options, but there is a problem. When I press control-alt-delete to bring up TaskManager, I get an error. If I try to Shutdown from the Start Menu, I am told I don't have permission to shut it down. But I can press control-alt-delete and to Shutdown from that menu and then I get a Program Not Responding window referencing "ApUsbPnP". So, I'm guessing that is at the core of the problem. I have no idea what the heck that is!

Any help will be appreciated. Thanks in advance.

Martin Murray
The few articles I found on "ApUsbPnP" suggest you have a trojan horse.

In general, any device that stops working after hibernation might need this:

Open Device Manager, open the properties on the device, or each of your USB ports, click the Power tab, and deselect "Allow the computer to turn off this device to save power".
OK.. But I also suggested a fix for loss of some device usage after hibernation.

Oh, and there's this.. Adaware won't catch everything. Nor will Spybot, or any other software. A Trojan horse, in particular, is seldom caught by anti-spyware software; it's usually caught by antivirus software. But it's just as usual that, if you are infested, the infestation disabled your av software, and runs a fictitious, or incomplete scan so you think you're not infected. You might want to do an online scan just as a precaution. I hate to keep harping on the malware "solution" though.. here's the few posts I've found on that file:

http://groups.google.com/groups/search?q=ApUsbPnp&qt_s=Search+Groups
http://www.google.com/search?tab=gw&q=ApUsbPnp (52 posts, not the 120+ suggested. Most are in foreign languages.)

Serato Scratch (Just one of those threads.)
http://www.techsupportforum.com/microsoft-support/windows-xp-support/91094-what-apusbpnp-program.html
Try one of these free online virus scans:

This one has a choice of a Quick or a Complete check. Use the Complete check.
http://www.pcpitstop.com/

Symantec
http://security.symantec.com/default.asp?productid=ssr&langid=ie&venid=sym

<url:http://security2.norton.com/us/home.asp?j=1&venid=sym&langid=us&plfid=20&pkj=IHBEXIBVEMBQAUWZKTK> then click the Security check link.

http://housecall.antivirus.com/ free online virus scan

http://www.ewido.net/en/

One other thought; it could be associated with a specific hardware component, one that plugs into the USB port, possibly a router or modem.

--
Joe =o)
.

Relevant Pages

  • Re: ApUsbPnp hanging at shutdown
    ... Martin Murray wrote: ... I have disabled that feature in Device Manager as you recommended, and we'll have to wait to see. ... Graphics begin to get flaky sometimes, the LAN stops working sometimes, or maybe the Start button brings up a garbled list of options, but there is a problem. ...
    (microsoft.public.windowsxp.general)
  • Re: A8N-E Power on keyboard
    ... the keyboard needs power while the computer ... and it has waking feature for the two PS/2 connectors. ... USB ports terminate in the Nforce4 chipset, ... Asus tech support, and see if they think it might be possible ...
    (alt.comp.periphs.mainboard.asus)