i am running windows service pack 1 on an e machine (gateway)  T5254 model when i start windows explorer my cpu spikes up to a 100 % usage is that common and safe please reply because my computer is my world<hr class="sig">albert robert cook jr© 2009 Microsoft Corporation. All rights reserved.Wed, 22 Jul 2009 21:10:21 Z6fa2f5bc-ebe2-40ad-a092-e80420aecf40http://social.answers.microsoft.com/Forums/en-US/vistaperformance/thread/6fa2f5bc-ebe2-40ad-a092-e80420aecf40#6fa2f5bc-ebe2-40ad-a092-e80420aecf40http://social.answers.microsoft.com/Forums/en-US/vistaperformance/thread/6fa2f5bc-ebe2-40ad-a092-e80420aecf40#6fa2f5bc-ebe2-40ad-a092-e80420aecf40youproicon69http://social.answers.microsoft.com/Profile/en-US/?user=youproicon69i am running windows service pack 1 on an e machine (gateway)  T5254 model when i start windows explorer my cpu spikes up to a 100 % usage is that common and safe please reply because my computer is my world<hr class="sig">albert robert cook jrSat, 04 Jul 2009 06:47:42 Z2009-07-04T06:47:42Zhttp://social.answers.microsoft.com/Forums/en-US/vistaperformance/thread/6fa2f5bc-ebe2-40ad-a092-e80420aecf40#1642f6af-f0b1-4b4e-a9ce-2fe978ba3379http://social.answers.microsoft.com/Forums/en-US/vistaperformance/thread/6fa2f5bc-ebe2-40ad-a092-e80420aecf40#1642f6af-f0b1-4b4e-a9ce-2fe978ba3379Jack - Support Engineerhttp://social.answers.microsoft.com/Profile/en-US/?user=Jack%20-%20Support%20Engineer<p class=MsoNormal style="margin:0in 0in 10pt"><span style="line-height:115%;color:black"><span style="font-size:x-small">Hello youproicon69,</span></span></p> <p class=MsoNormal style="margin:0in 0in 10pt"><span style="line-height:115%;color:black"><span style="font-size:x-small">Thank you for posting.<span style="">  </span>How long does the CPU usage stay at 100%.<span style="">  </span>It is not out of the ordinary for this to happen for very brief periods (1 or 2 seconds).<span style="">  </span>If the CPU usage is staying at 100% for long periods of time when you do not have resource intensive applications or processes running it can be indicative of a problem.<span style="">  </span>The first thing that comes to mind is malware.<span style="">  </span>If you are even the slightest bit concerned that you could have malware on your system I would read and follow the advice of the Microsoft MVP’s in this thread from the Security and Privacy Forum:</span></span></p> <p class=MsoNormal style="margin:0in 0in 10pt"><a href="http://social.answers.microsoft.com/Forums/en-US/vistasecurity/thread/fa30853d-719a-4265-9e7b-9287567d31e3"><span style="font-size:x-small">http://social.answers.microsoft.com/Forums/en-US/vistasecurity/thread/fa30853d-719a-4265-9e7b-9287567d31e3</span></a></p> <p class=MsoNormal style="margin:0in 0in 10pt"><span style="font-size:x-small">Make sure you run all three scans.<span style="">  </span>Let us know how long your CPU stays spiked at 100% and the results of the scans in your reply.</span></p> <p class=MsoNormal style="margin:0in 0in 10pt"><span style="font-size:x-small">Thanks,</span></p> <p class=MsoNormal style="margin:0in 0in 10pt"><span style="font-size:x-small">Jack </span></p><hr class="sig">Jack<br/> Microsoft Answers Support Engineer<br/> Visit our <a href="http://social.answers.microsoft.com/Forums/en-US/answersfeedback/threads/"> Microsoft Answers Feedback Forum</a> and let us know what you think.Sat, 04 Jul 2009 22:28:06 Z2009-07-04T22:28:06Z