Svchost.exe file

I'm having some issues with CPU usage. I feel like my laptop is working overtime to do some very average things. I noticed many, many svchost.exe files running in my TaskManager. I understand that some of the files are legit. But that many all the time. I also have another file called svcwinra.exe that never goes away no matter how many times I end the process. I am concerned that this is a worm at work, I am getting an Lsass feeling.I hope that someone has some precise help from me. Anything is welcome. Help, no food, no system info, no money, no solution. Will work for information.

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