Can't install Central because Enterprise Console Tamper protection is still enabled

Question

I've disabled tamper protection successfully on a few machines by following this article: https://community.sophos.com/kb/en-us/119175 . 
 Now I have two machines that I've followed this procedure on and the Central installer still claims that tamper protection is enabled. What do I do now?

Darth_Boss · Accepted Answer

Thank you FlorianP&ouml;the1, but I have already tried that article to no avail--specifically, these steps: 
 Managed by Sophos Enterprise Console

Boot the endpoint or server in Safe Mode . 
 Click Start followed by Run then type services.msc 
 Right-click the Sophos Anti-Virus service then Properties . 
 Set the Startup type to Disabled then click the OK button. 
 In Run , type regedit.exe then click the OK button. 
 Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Sophos Endpoint Defense\TamperProtection\Config and set the Value data to 0 for SAVEnabled and SEDEnabled . 
 Set the Value data of Enabled to 0 in the following: 
 
 32-bit: HKEY_LOCAL_MACHINE\SOFTWARE\Sophos\SAVService\TamperProtection 
 64-bit: HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Sophos\SAVService\TamperProtection

Enhanced Tamper Protection will now be disabled after you boot the endpoint or server in normal mode.

Darth_Boss · Answer

Thank you for the help but I ended up re-imaging the machines.