KBA 119175 cannot uninstall Sophos Endpoint and no previous solutions have worked

Question

KBA 119175. I cannot uninstall Sophos Endpoint Security and Control from my computer! 
 2 years ago I downloaded the program through my university. About a year ago they stopped having a centralized, organization-subscription in favor of students downloading Sophos Home for free. I would gladly do that if I could UNINSTALL the original, but it has TAMPER PROTECTION on. I have no idea what the original password was. 
 Originally Sophos said there was a "super admin" user at my organization who could change my password, but I've talked with everyone in IT there and they say there is no such "super admin". They recommended I follow the steps in the link: community.sophos.com/.../contact-your-administrator-or-see-sophos-kba-119175 
 But even in Safe Mode, I was unable to avoid Tamper Protection. 
 I cannot remove Sophos Endpoint and this is putting my computer at risk, since it no longer receives any updates, and I am unable to download other antivirus software! 
 Please help!

Christian Schoning · Answer

By "it seemed to work", I meant that after making those changes in the registry (which were different than what was described in the article) I was able to successfully run installer for the Sophos Antivirus products. 
 However, when I tried to remove the Sophos Auto Update, the last component left on my computer, is where I ran into the issues with the uninstallation. 
 When I go to Uninstall Programs in Control Panel, no listing for Sophos appears. 
 Sophos Auto Update is still located under "Program Files (x86)". 
 Originally when I tried to manually delete this file, I got the error saying that it was in use, and thus couldn't be deleted. 
 Today when I tried I was able to successfully do this. 
 I still saw a number of Sophos files on the PC. I manually deleted them, and it seemed to work. So it looks like everything is solved now.