Chrome has gone but I can't now reload it since bigG steadfastly refuses to progress beyond the notice "This computer will no longer receive updates for Chrome"
Incidentally I like REvo for uninstalling.
That got rid of a deal of registry stuff and a bunch of 14 files (as you said would be left over, mostly appdata)
Avast also offered to remove those files.
Am using Firefox for now, seems OK so far, but I have had trouble in the past with Fox.
One tip when rooting things out.
Cleanup with something like ccleaner first.
This gets rid of often many Gbytes of dross that your checker woud otherwise have to sort through.
When you have finished clean up again with ccleaner. - it often finds leftovers like 'unused file extensions' and other rubbish exposed by the rootout.
Thanks again for the help so far.