Microsoft windows search filter host Microsoft windows search filter host is burning my cpu usage.

I had the same problem and the advice on this page didn't help that much. troubleshooter was obviously incapable of finding a "problem" after literally hours of high cpu usage on my laptop. Try this:

go to control panel... choose to view as small icons... then select indexing options

or search for indexing options

open it

advanced

choose rebuild from the troubleshooting section (DOH)

it would seem that an error in the index is causing this high cpu usage. I'm no expert but this solved the problem for me. windows search momentarily doesn't work... but the index is rebuilding so it will be ok.

it has nothing to do with indexing locations... I added the entire drive in the index and cpu usage dropped immediately after choosing to rebuild to 5%-10%.

there is a way of uninstalling windows search from programs in control panel. it's just a windows "feature". but I would advise against this as I have already tried that... and the windows 8.1 menu seems a little sluggish after this (also the OS in general).