If you try to withdraw Memory Exploit Mitigation policy in the Symantec Endpoint Protection Manager (SEPM) 14.2 console, fhe following message will be displayed.
Memory Exploit Mitigation policies cannot be withdrawn.
Every group and location must have a Memory Exploit Mitigation policy.
This is by design.
SEPM 14.2
If you don't want to use Memory Exploit Mitigation policy, please disable it in the SEPM console.