1. Go to the 'user' folder –>Library –>Application Support –> Google – Chrome –> Default.
2. Copy the bookmark.bak to bookmarks.

This will make the backup copy into the current copy. Then restart your chrome, and the bookmarks should be restored.

1. Go to C:\Documents and Settings\<your_username>\Local Settings\Application Data\Google\Chrome\User Data\Default\on Vista: C:\Users\<your_username>\AppData\Local\Google\Chrome\User Data\Default\
2. Copy bookmark.bak to bookmarks.

1. Go to C:\Users\<YOUR USERNAME>\AppData\Local\Google\Chrome\User Data\Default
2. Copy the Bookmarks.bak file to a safe location ( I copied the “bookmarks.bak” file to my desktop).
3. Close Chrome.
4. Rename the “Bookmarks.bak” file you just copied to “Bookmarks” and copy it back in to that directory, overwriting the original one.