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alexspecht's avatar
alexspecht
Copper Contributor
Feb 15, 2026
Solved

svchost.exe high CPU usage - solved

I dont know when it started happening, but I was getting a CPU spike from svchost.exe on startup This lasted about 30 seconds then the CPU cooled off. I found that Superfetch was causing it.   ...
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  • alexspecht's avatar
    alexspecht
    Feb 26, 2026

    The specific service under svchost.exe was UdkUserSvc causing the high CPU usage; spike.

     

    I found that Superfetch was causing it.

     

    By disabling Sysmain service the CPU spike seems to have been resolved

alexspecht's avatar
alexspecht
Copper Contributor
Feb 23, 2026

Just to clarify:

The specific service under svchost.exe was UdkUserSvc causing the high CPU usage; spike.