Meant as an info: http://www.freefixer.com/library/file/Quoteex.exe-231456/
You might follow the advices in this multi-step removal guide: Remove Potentially Unwanted Programs (PUP Removal)
And you might want to use this free tool: http://blog.emsisoft.com/2015/06/09/how-to-find-and-clean-malware-infections-with-emsisoft-emergency-kit/
< Later EDIT: You can also follow the steps in this recently published guide:https://malwaretips.com/blogs/remove-browser-modifier-win32-linkhortry/>