Uninstall Sophos Endpoint Software on Windows 10 machine

Eventually I want to remove Sophos from over 700 machines but I'll be happy if it works for just one test machine to start.

1) I have gone into Sophos Central and turned off tamper protection

2) In Sophs Central I have Manage Endpoint Software>No Protection (Remove any current protection)

3) opened an administrator command prompt and typed with and without the /s

• • REG QUERY HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall /s /f SOPHOS > C:\Sophos_Uninstall_Strings32.txt
  • REG QUERY HKLM\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall /s /f SOPHOS > C:\Sophos_Uninstall_Strings64.txt

Results:  Nothing changed except I got the text file in the root of C:\

FYI:  In the past month I have managed to get a script to run thru SCCM with user interaction and then it failed when I went to no user interaction (-silent).  I suspect it needed a restart at the beginning and the end of the process.  I went back to SCCM with user interaction and now it also failed so I have gone all the way back to the command prompt on a single computer and it even fails.

Any help would be appreciated.