Windows operating system runs many processes that may include unknown services or viruses, one of the strange processes is svchost.exe, sometimes you find several processes under this name and you need to understand what they are doing.

They consume a lot of memory footprint and if you kill them all it will not solve the situation as they allow some necessary services on the operating system such as windows firewall or windows defender, for this situation you can take a look at Svchost Process Analyzer, it’s a free tool that require no installation and will add no entries to registry keys

Download
http://www.neuber.com/free/svchost-analyzer/