Are you getting redirected to the website search.k2fhblk.com when you open your browser? If so, a browser hijacker is causing this attempting to commandeer your browser search and homepage. Search results generated by this browser hijacker will send you to malicious websites to get money from you or infect your computer further. It will also fill your screen with unwanted ads and may prevent you from changing your settings back.
Search.k2fhblk.com redirects usually happen because of a bundled malicious software installed without you knowing. Remove it immediately.
