1day ago on 12th August I downloaded an add on called Shopping Helper. It changed my homepage to search snapdo or something like that and made internet work slower. Random pop ups started happening, internet operated slower and random words are now links to shopping webpages. I never click on them but I can see they are links to sites like edeals, etc. So I uninstalled all programmes I could see connected with this shopping helper and snapdo from the Control Panel. I also reset my browsers (Internet explorer and firefox), used Adwclear, Hitman pro, Malwarebytes Anti-Malware. They said they removed threats but the issue keeps happening after I restart computer. Can anyone help me please??