Question about Dell Inspiron 6400 Notebook

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CPU usage is 100% !!

Some times when I power on my Dell isnpiron 6400. I heared that the voice of CPU fan became very high and loud, and the Windows load very slowly, I can't open any program just after 5 min from i double-clicked on its icon!! the system became very slow, and cpu usage is between 99-100%.
Just shut down and power on again.. every thing back normal and the Windows become fast.
I have Antivirus software (Kaspersky 6.0) and updating it every day..I wonder if it's virus why it will be not active when I shut down and operate the laptop again??

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Re: CPU usage is 100% !!

Hey there yasser_81,

So it was just a random spike in CPU usage? Do you remmber what you were doing at the time this occured? Were you playing any PC games, or were you just simply checking email. To be honest, this doesn't too much like a typical virus. It doesn't rule out the fact that it is.

Simple check though, if you are concerned of it being one, is use a quick check with TrendMicro.

go to,

What this is, is a simple, applet based virus scanner that will check your PC of any infected files, and also attempt to remove them.

If it does in fact find some malware/greyware/worm virus, then you may safetly assume that, that's what caused the issue.

If it did not, it may otherwise have been just your computer not dealing well with opening/closing of applications so quickly.

If these steps do not help, respond back please with what you were doing at the time, and also how much memory does your laptop have.


Posted on Dec 08, 2007

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First, I appreciate the details provided in your question. Thanks!
The specification of your laptop are fine and enough to run and support Vista. It is true that greater number of processes and CPU usage causes, but normally the machine can handle it well if it gets proper ventilation.
Laptop heating issue generally occurs due to fan failure, which may damage the system, if not checked properly. Another cause of overheating is the dust present inside the laptop, which clogs the fan and heatsink. I suggest that you should get you laptop checked by a professional for servicing (if required). I believe immediate action is required to prevent any damage to your machine and data.

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