1st of all go to setting of browser and then go to extension or ad-on area
remove their extension and then go to Control Panel of PC and uninstall it, if there is another thing that you see not looks like you have installed and not system or windows program uninstall it too, restart pc and enjoy

Hi Nina, when dealing with delta-homes.com and mysearch123 it's very important to correct the browser shortcut targets like it's shown in our removal guides. After following every step you should also scan your computer with SpyHunter and AdwCleaner (https://toolslib.net/downloads/viewdownload/1-adwcleaner/). The mentioned browser hijackers are known to install additional applications that can reinstall delta-homes and mysearch123 if not removed.