BleepingComputer.com: Recurring problem

Please note that English isn´t my native language...

The computer in question is a LG notebook with Vista Business, updated. Norton and Adaware updated and used.
A couple of times a day the computer slows down terribly, the CPU works at a 100% but there´s no program or activity
that seems to use all that computing-power. The harddrive works loads och internet (built in wireless ADSL) shuts down.

A reboot fixes the problem temporarily but after a while it´s the same again! ANY suggestions?!

SeventySeven, on Nov 5 2008, 11:34 AM, said:

Hi SeventySeven,

This is Mike from the Norton Authorized Support Team responding to your posting.

First, make sure you are using Norton 360 version 2.x. If you are still using version 1.x and have a valid subscription, you are entitled to a free update to version 2. Using Internet Explorer 5.5 or higher, navigate to the Norton Update Center and follow the instructions to update.

Norton Update Center

Most slowdown issues are caused by either an infection, software conflict or a corrupted installation of Norton 360. Make sure that the Windows firewall is disabled and that you do not have any other antivirus or internet security applications installed, as they can cause conflicts with Norton 360 and lead to the slowdown and a lack of protection.

If you are already using Norton 360 ver2.x, then manually run LiveUpdate to ensure you have the latest available application and definition files applied. After doing so, launch Norton 360 and perform a "Comprehensive Scan" to check for infections.

Make sure that your machine meets or exceeds the requirements for Norton 360. Please carefully follow the instructions in the document below.

Solution for when Computer runs slow after installing Norton 360

You may also have a problem with a lack of system resources, Symantec has a document on this issue which I encourage you to follow.

Using Internet Explorer 5.5 or higher, click on the link below and follow the instructions.

Symantec Basic guide to optimizing system resources

Please try out this process and let me know how it goes.

Thanks,
Mike

This post has been edited by Michael York: 05 November 2008 - 03:34 PM

Hello Mike! I think I might have expressed myself poorly. The computer has fully updated Norton Antivirus 2007 but the program isn´t used when this problem occurs.

Have you checked in Task Manager...Processes tab to see what's consuming those CPU cycles?
To access Task Manager, right click on your Task Bar and select it from there - then click on the Processes tab and note what Image Names are displayed as taking up the CPU cycles when this problem occurs.

Ok, I´ll have a look at that. I´ll return.

SeventySeven, on Nov 5 2008, 12:30 PM, said:

Hi SeventySeven,

If you have "Auto-protect" disabled and Norton is not being used, then the problem you are having is not related to Norton.


Thanks,

Mike

Michael York

Norton Authorized Support Team

Symantec Corporation

http://service.symantec.com/priority

This post has been edited by Michael York: 05 November 2008 - 06:09 PM

Looks like it may be 'consent.exe' that´s causing the problem. Tried to google on that name but didn´t get any smarter.

Edit: Guess it can come from clicking OK after clicking 'show processes for all users'. And in that case we are back on square one...

This post has been edited by SeventySeven: 15 November 2008 - 06:29 PM

OK, after viewing the processes a longer while it seems that it´s 'NT Kernel & System' that uses approx 60-85% of the CPU power all the time when the computer slows down. No other processes use more than 10%. Any suggestions?