What is the most logical next event?

How to remove chitika
Download a few anti-malware and anti-adware scanners.
These programs will help find and eliminate pesky advertising programs. The following programs are all free, or have fully-functional trial versions.
Adwcleaner-general-changelog-team. Fr/en/tools/15-adwcleaner malwarebytes antimalware-malwarebytes.org hitmanpro-surfright.