Error 1606. Could not access network location \Hewlett-Packard\\.

This took a while to sort out on a new system!

The following is the fix taken from Espol on the MediaBrower web site.

• Open regedit goto HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall if there is an InstallLocation string listed there (not within any of the folders under Uninstall), just delete it 
• If you have a 64bit Windows, also goto HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall repeat the same thing here.

It was at this second location I found the offending entry. So many thanks to Espol.