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Your network contains a server named Server1 that runs Windows Server 2012 R2. Server1 has the Hyper-V server role installed.
Server1 hosts four virtual machines named VM1, VM2, VM3, and VM4.
Server1 is configured as shown in the following table.

VM3 is used to test applications.
You need to prevent VM3 from synchronizing its clock to Server1.
What should you configure?