- Exit Google Chrome completely.
- Enter the keyboard shortcut Windows key +E to open Windows Explorer.
- 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\
- Locate the folder called "Default" in the directory window that opens and rename it as "Backup default."
- Try opening Google Chrome again. A new "Default" folder is automatically created as you start using thebrowser.http://support.google.com/chrome/bin/answer.py?hl=en&answer=142059