Start the registry editor. This is done by clicking Start then Run. (The Run dialog will appear.) Type regedit and click OK. (The registry editor will open.) Delete 'HKEY CURRENT USER \ Software \ Microsoft \ Internet Explorer \ Toolbar \ WebBrowser \ {4E1075F4-EEC4-4A86-ADD7-CD5F52858C31}, if it exists. Delete 'HKEY LOCAL MACHINE \ SOFTWARE \ Microsoft \ Internet Explorer \ Toolbar \ {4E1075F4-EEC4-4a86-ADD7-CD5F52858C31}', if it exists. Delete 'HKEY LOCAL MACHINE \ SOFTWARE \ Classes \ CLSID \ {4E1075F4-EEC4-4a86-ADD7-CD5F52858C31}', if it exists. Exit the registry editor. Restart your computer. Delete the following files: %WinDir%\2020install.exe %WinDir%\2020search.dll %WinDir%\mssvr.exe %WinDir%\svchost.exe Note: %WinDir% is a variable (?). By default, this is C:\Windows (Windows 95/98/Me/XP) or C:\WINNT (Windows NT/2000).