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Question

Memory or?

Sep 21, 2012 5:56AM PDT

Out of nowhere, after a simple reboot, my XP(SP3) pc has slowed to a crawl. No problems before, running normally. I can no longer open any programs, Internet, etc. so I'm using a laptop from work. Norton opens and the cpu/memory performance graph shows very high memory usage and low cpu. I tried burning the Windows Memory Diagnostic to a cd and dvd but neither boots up, so I'm not sure what I did wrong there. Are there any diagnostics anyone can recommend?

Discussion is locked

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Answer
check to see if
Sep 21, 2012 6:00AM PDT

you Norton ant virus is up to date

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memory or?
Sep 21, 2012 7:42AM PDT

yes, Norton is up to date

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Answer
Sure but first, why not make, model or story?
Sep 21, 2012 6:03AM PDT

This old PC might be suffering from that old XP DMA BUG (a cure was never issued), malware or heat.

I do not suggest any diagnostics. I use what the client tells me and what I see the machine tell me as I boot it up. I have been known to use Grif's advice at http://forums.cnet.com/7726-6132_102-5098912.html?tag=posts;msg5099421 if I suspect malware.

Another discussion went on and on and it turned out the owner was using torrents. Always a bad sign.

Tell more.
Bob

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Now that we see Norton.
Sep 21, 2012 7:45AM PDT

Look for any other PROTECTION app such as Spybot or Teatimer and the list goes on and on. But such may work and then spontaneously fail. What I find my self looking for is any overlap.
Bob

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Memory or ?
Sep 21, 2012 7:48AM PDT

Bob,

I'm running Norton, up to date, so I don't want to run competing anti malware programs. I'm not doing torrent, file sharing or anything related.

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Still very little to work with.
Sep 21, 2012 8:00AM PDT

No make, model so I can't check if the old XP DMA bug applies. And folk that depend only on Norton often find other pests that Norton does not catch. For that reason I supplied not only my question but Grif's advice for scanners.
Bob

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memory or? narrowed it down to ethernet
Sep 22, 2012 7:08AM PDT

I have narrowed the problem down to the ethernet connection. When this first happened, I had the ethernet cable connected to my laptop from work, had disconnected from there and reconnected to my home pc (where the problem is). Because the ethernet seemed to take a while to reconnect, I had rebooted the machine. When it came back up, that's when the slowdown started to the point of freezing. Today I noticed if I reboot with the ethernet disconnected, all programs (except those Internet related) work fine. Once I plug ethernet back in, everthing slows to a crawl and then freezes. So the turning point was when I rebooted after reconnecting the ethernet cable. When that is disconnected, a reboot brings me back to normal, except without being able to use the internet which then kills everything.

Hope this sparks someone's mental light bulb.

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Read you original post
Sep 22, 2012 12:09PM PDT

why would it spark anyone's mental light bulb?

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correction...
Sep 22, 2012 12:11PM PDT

your