Solved

services.exe/umpnpmgr.dll using 100% CPU when new device detected

Posted on 2007-03-27
5
2,338 Views
Last Modified: 2012-06-27
I am using Windows XP SP2 with all the latest updates.

When inserting any new USB device, or installing any non USB device, I get the normal "New hardware detected" popup.

Thats where things go wrong. Services.exe will then take up 100% CPU power, which I traced through Process Explorer to a module called umpnpmgr.dll. The hardware will not install and sit there happily for as long as you dont shutdown the system eating 100% CPU usage. The "new hardware" popup baloon will remain indefinatley.

This laptop has had an overhaul as it was formally infected by spyware of all kinds. Ran Ad-Aware, Spybot, SysInternals Autoruns to remove suspicious entries then Hijack this, which is all clear now.

I do not wish to reinstall the laptop so I need to find out if anyone knows of this umpnpmgr.dll bug
0
Comment
Question by:Draelen
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 7

Accepted Solution

by:
concretesailors earned 150 total points
ID: 18800276
It sounds like a buffer overflow, and Microsoft has a fix for it here;
http://www.microsoft.com/downloads/details.aspx?familyid=1559E44A-DDEE-4C86-BF02-A6C3B9BEEE0C&displaylang=en
0
 

Author Comment

by:Draelen
ID: 18800876
Thanks for the reply. I installed the specified update and rebooted, however services.exe still takes 100% usage on detection of any hardware
0
 
LVL 62

Assisted Solution

by:☠ MASQ ☠
☠ MASQ ☠ earned 150 total points
ID: 18801136
There is a separate patch for the universal PnP manager
Also check the version number you have installed.

Links to the patches, correct DLL version numbers, instructions and M$ KB here: http://www.cmu.edu/iso/latest/bulletins/MS05.039.htm

This DLL file can be affected by malware software, if you had a major series of infections it is possible some damage remains.  You should seriously consider a repair/reinstall of XP or (despite your clear wish not to do this) a reformat and reinstall.
0
 

Author Comment

by:Draelen
ID: 18875990
Neither of the above solutions were successful. An eventual in-place repair installation was done to keep settings and resolve the issue. Points will be split both ways for the helpful replies at any rate
0
 
LVL 62

Expert Comment

by:☠ MASQ ☠
ID: 18876069
?I thought I had recommended a repair/reinstall ...
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you need to start windows update installation remotely or as a scheduled task you will find this very helpful.
When you try to extract and to view the contents of a Microsoft Update Standalone Package (MSU) for Windows Vista, you cannot extract the files from the MSU. Here we are going to explain how to extract those hotfix details without using any third pa…
This video Micro Tutorial explains how to clone a hard drive using a commercial software product for Windows systems called Casper from Future Systems Solutions (FSS). Cloning makes an exact, complete copy of one hard disk drive (HDD) onto another d…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question