To Change System Properties logo and info;
regedit, search for OEMInformation (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\OEMInformation)
Here’s how to contact google directly to receive assistance.
2. Click the icon in the top left corner of the page
3. At the bottom of the menu click > Support
4. You can see a number of popular questions (one being how to delete a page) or you can request a call back.