Websearch.toolsearchbook.info problem..anyone can help?

This websearch.toolsearchbook.info looks just like normal search websites so I think maybe it's OK to keep it in my computer. But later problems happen! There are many pop-up ads and I keep being misled to other unknown commercial websites. I try my antivirus but in vain. Can anyone can help me with this? Thanks.

You need to show all hidden files so that you can know where this programs has hidden. Then you can delete them from registry.
control panel - tools - folder options - show all hidden files.
start menu - search programs and files - "regedit"
Good luck!

It's terrible!

Hope you can fix your computer soon....