When trying to uninstall Sophos products from Add/Remove Programs (or equivalent depending on your Windows operating system) you see the message:
You have insufficient privileges to uninstall this product.
When you click OK you see the message:
Fatal error during installation.
First seen in
Sophos Endpoint Security and Control 9.5
Typically, this error is seen when Tamper Protection in Sophos Endpoint security is enabled on the computer, this prevents you from removing the Sophos product.
What to do
Disable Tamper Protection, as described in How to: Disable Tamper Protection.
You should now be able to remove the Sophos components from Add/Remove Programs.