Sophos Central Endpoint and SEC: Computers fail/hang on boot after the Microsoft Windows April 9, 2019 update. Please follow knowledge base article 133945
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This article describes how to recover a tamper protected system if the tamper protection password is lost and the client cannot receive a new policy with a known password.
Applies to the following Sophos products and versions Sophos Endpoint Security and ControlCentral Endpoint Advanced 11.5.11Central Endpoint Standard 11.5.11
Note: Remember to do a backup of the registry before attempting these procedures.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Sophos Endpoint Defense\TamperProtection\Config
Starting 20th January 2018, the Tamper Protection passwords can now be retrieved for deleted endpoints and servers from within Sophos Central. Follow the steps below to obtain this information:
Note: The report will display endpoints and servers that have been deleted over the previous 60 days. For release, the start date for displaying any deleted endpoints and servers is 09th December 2017.
If you do not have access to Sophos Central, perform the following steps to disable the Enhanced Tamper Protection:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Sophos MCS Agent
Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Sophos Endpoint Defense\TamperProtection\Config and set the Value data of SAVEnabled and SEDEnabled to 0.
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