CPU Usage is 100%, but I don't see anything in the Task Manager that is?
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Okay, so I'm running on my laptop as usual but I find things a little laggy as I use the Internet. I go back to look in the processes tab in the Task Manager and when I open it, the CPU Usage is shown to be 100. But the funny thing is that whilst I'm on Task Manager the CPU Usage seems to reduce, however still ranging from 30~50. It will not show me what is taking up all that. I check to see if the processes shown add up to the figure, but they are too small. So my problem is, CPU Usage is 100 when I go to Task Manager and as I'm on it, it reduces (but comes back to 100 if I come back and open the Task Manager again later). But still ranges from 30-50 something and does not show what the cause is, please help D:
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Answer:
if its on 100% usually it means theres a virus, its meant to be on about 30% - 50%, if scanning for viruses doesnt work (there is no virus) then just clean up your hard drive
Ted at Yahoo! Answers Visit the source
Other answers
Definitely, you should scan for viruses,It's normal to have spikes in high CPU usage. However, if there is a constant trend of high CPU usage, this can indicate a problem. Windows Task Manger is a great tool to track CPU usage. In the Windows Task Manager, click the Performance tab. This will display your CPU Usage History. Press Ctrl-Alt-Del then stop all the programs and process that are eating up your CPU.
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