Do viruses cause your cpu usage to skyrocket to 100% Tags: CPUs Last response: January 24, 2010 1:51 AM in CPUs Share Anonymous a b à CPUs January 24, 2010 1:42:53 AM Hello, What causes CPU usage to skyrocket to 100% when usage is normally a small fraction of that (say 20, no more than 30%, tops!)? Do/can viruses cause this? More about : viruses cpu usage skyrocket 100 Aneesh@4GHz January 24, 2010 1:48:22 AM May be ,Or any bugs on softwares or os,Something like that..... m 0 l JDFan a b à CPUs January 24, 2010 1:51:08 AM Yes they can - press Ctrl-Alt-Del to open the task manager and see what process is using the CPU (be sure you check the see processes from all users) and it should show you what is using the CPU processes. m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedCpu usage spiking at idle up to 70%, in game spiking to 100% causing massive frame rate problems Forum New SATA hdd causes periodic cpu usage to spike at 100% Forum SolvedCan an unsupported FSB cause instability after installing faster GPU? 100% Usage on 1st core Forum HD 6450 Causing 100% CPU usage Forum My Music folder causing 100% CPU usage Forum FireWire card causes 100% CPU usage in Svchost.exe Forum Solvedcpu usage 100% Forum remove virus causing explorer.exe to use 100% CPU Forum Solvedmy quad core cpu spikes 100% usage Forum SolvedWhy does my desktop suddenly stops working and the cpu usage is always 100? Forum Solvedmy computer lags when cpu usage is at 100% is that normal Forum SolvedOpening Task Manager Raises CPU Usage To 100% Forum Solvedcpu usage reaches 100 % problem Forum SolvedCore i5 100% CPU Usage with 1080P Video? Forum SolvedAfter a few minutes at idle, %100 1 cpu core usage Forum SolvedWhy did my CPU briefly Go To 100% Usage? Forum SolvedGames using 100% CPU usage and lagging. Forum SolvedConstant 100% CPU usage on idle (period_search_10210_windows_x86_64sse3.exe) Forum SolvedFPS dropdowns and 100% CPU usage Forum SolvedMy CPU usage is at 100% and my GPU usage is about 60% on Crysis 3. Forum More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !