go into your chrome profile
In the Windows Explorer window that appears enter the following in the address bar.
Windows XP: %USERPROFILE%\Local Settings\Application Data\Google\Chrome\User Data\
Windows Vista/ Windows 7/ Windows 8: %LOCALAPPDATA%\Google\Chrome\User Data\
go into default folder
you can: delete file system folder
go to into file system and search in all folders a file of 1.2 - 1.4 MB size (or more)
open chrome and see the first page where you can again select the features you want to install, you will have access to the options