Which two (2) steps should an administrator take to guard against re-occurring threats? (Select two)

Which two (2) steps should an administrator take to guard against re-occurring threats? (Select two)
A . Confirm that daily active and weekly full scans take place on all endpoints
B. Verify that all endpoints receive scheduled Live-Update content
C. Use Power Eraser to clean endpoint Windows registries
D. Add endpoints to a high security group and assign a restrictive Antimalware policy to the group
E. Quarantine affected endpoints

Answer: C,E