On a standard Windows 10 installation, you can find this file here:
C:\Users\[YourUsername]\AppData\Local\Google\Chrome\User Data\Default\Bookmarks where are chrome bookmarks stored windows 10
While finding the file is useful for advanced troubleshooting, the safest way to back up bookmarks is to use Chrome's built-in export tool. This saves the file as an HTML file, which is easier to handle. On a standard Windows 10 installation, you can