WowSearch, though may be a harmless low quality search engine, is actually a browser hijacker that will attempt to commandeer your browser search and homepage to search.wowsearch.net. The results will send you to malicious websites to get money from you or infect your computer further. It will also generate unwanted pop-up ads, may affect PC performance and prevent you from changing your settings back.
Wow Search is usually installed through bundled software without you knowing. Remove it immediately.