CPU Usage at 100%

Davidov007

Honorable
Jul 22, 2017
23
1
10,515
My CPU Usage is at exactly 100%,on PC startup it is quite low,but then rises up almost instantly followed by the processes amount without anything open (idle). I have a Win 7 32 bit desktop. Any help would be much appreciated.
 
Depending on the actual process svchost.exe sometimes does take up quite a bit, but then should drop down. An overview: https://www.howtogeek.com/howto/windows-vista/what-is-svchostexe-and-why-is-it-running/

Don't know what your CPU is so the 85 deg C you mention lacks context as to whether it is hot for it or not. That would be the next thing to verify.
 
Intel CPU thermal thread for reference: http://www.tomshardware.co.uk/forum/id-1800828/intel-temperature-guide.html

85 deg C isn't quite throttle temperature yet, which according to the article would be 100 deg C for that particular line of CPU. Doesn't hurt to clear the inside of the case, fans and heatsink of dust though. I do assume the temperature was read at 100% of CPU usage.

Aside from that, I'm not sure what else could be checked. Hopefully others will be able to provide a different perspective which I missed.
 

Bob125484

Honorable
Jun 13, 2015
712
17
11,365


Did you install any software lately? I have i5 2500K. When I select custom install for MS office where I pick certain app that I need. Once it is done and after bootup, I noticed my system is very slow to response. Even at idle and no application open, I noticed svchost.exe keeps running between 50 and 100% of CPU usage all the time for no reason. I uninstall all custom office and select default install so it install all MS Office . Afterward, everything back to normal. svchost.exe is near 0%. This is only experience that I know with abnormal high usage of svchost.exe