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Cpu usage spikes

March 9, 2010 at 00:38:02
Specs: Windows XP
Ok so I have ran windows defender, avg, and malwarebytes' anti-malware; which have all came back clean. But still my computer seems to lag, so I opened up windows task manager, I watched my CPU usage spike from 5 % - 15% and then every so often up to 90%. So I thought maybe it was a program I went into view and selected show kernel times. But it didn’t show any clear program spikes all programs were running normally at around 5% down to 1%. I have had a lot of trouble lately with lag and have called my ISP twice and both times have came back with either a virus, holes in my firewall, and randomly opened ports from a program in other words a virus. But this time after running 3 types of scans for exactly that and practically confirming that it’s not a program, the problem persists. I would really like to have an outside opinion of what’s going on with my computer. I guess maybe a hacker or something could be messing around but I don’t have enough computer knowledge to confirm that. But I did just download zone alarm firewall hopefully that helps. Thanks for your time and hopefully your help.

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March 9, 2010 at 01:32:42
it could be a hacker get your PC scanned... a firewall wont really protect you but to check its a hacker goto your history and REMEBER ALL THE HISTORY now go to a site, log in and see if your history has 2 new things check them both, if its the site you loged on to but with an address like its a hacker..., or your ram or cpu is slow... you can buy ram to make it run better.... my laptop is so slow it goes to a nice cruzing cpu of 5% until i move the mouse it goes up to 77% or more, its just basicly telling you its getting old :D HOPE IT HELPED

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March 9, 2010 at 13:18:04
In my opinion, Zonealarm is a great firewall. It will warn you if any program is trying to access the Internet. Thoroughly checkout any application that it pops up with before allowing it access..

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March 9, 2010 at 22:15:50
Try using a router with a hardware firewall as well as a software firewall. If you are using a software firewall, disable windows firewall to prevent conflict.
Download 'Process Explorer' from microsoft since it gives you much more information about what is running on your computer than task manager does and still allows you to shut down programs you do not want running.
Run Memtest to see if you are having any memory problems.
Add memory if you have less than 1gb RAM
Remove programs from starting with windows so you have less running all of the time.
Try Firefox, it is faster than IE on XP

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