Google.com autocomplete feature in Google Chrome omninox

Solution 1:

As far as I know, there's no way to manually restore the default Google search with all its features.¹

However, you can delete the configuration file that contains user-defined searches and let Chrome recreate it.

Steps

1. Close Chrome.

2. Locate your profile's Chrome folder.

   Windows 8, 7 and Vista:

   %LOCALAPPDATA%\Google\Chrome\User Data\Default
   

   Windows XP:

   %USERPROFILE%\Local Settings\Application Data\Google\Chrome\User Data\Default
   

   Linux:

   ~/.config/google-chrome/Default
   

   Mac OS X:

   ~/Library/Application Support/Google/Chrome/Default
   

   If you're not using the default profile, replace Default with your profile name.

3. Move the files Web Data and Web Data-journal elsewhere, so you can restore them in case their absence causes unexpected problems.

4. Reopen Chrome. If you use a Google Account, sign in.

5. Select the restored default Google search in Manage search engines and make sure the option Enable Instant for faster searching is checked.

_{¹ The default Google search doesn't appear in the Web Data like user-defined searches. Selecting the default search modifies the properties "instant_url" and "suggest_url" of "default_search_provider" in the Preferences file. Even modifying those properties manually doesn't have the desired effect, since Chrome removes them on restart.}