Sometimes some system process may be functioning abnormally for some reason and yes isa na don ang svchost, actually ive encountered this too before kasi it consumes a LOT of memory which is abnormal. Try to diagnose why in your case, kasi in my case I had to undo my previous driver installations and run some antivirus/antimalware and it somehow was fixed though Im not sure what is the culprit.
Good luck.