Exchange 2013 CU6 installation error because of Powershell Execution Policy

I am installing the Exchange 2013 CU6 but could not do it because of Powershell Execution Policy. I check the the local group policies for user and computer and they are "Not Configured". Please see the screenshot below for more details and give me some advices.

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David Johnson, CD, MVPOwnerCommented:
from within powershell with the run as administrator option
Set-ExecutionPolicy RemoteSigned -Scope LocalMachine

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Set-ExecutionPolicy RemoteSigned -Scope CurrentUser

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powershell by default doesn't run scripts

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dongocdungAuthor Commented:
I set those two scopes to remotesigned but it still did not work.

David Johnson, CD, MVPOwnerCommented:
from the exchange management shell (powershell) set the execution policy again.
dongocdungAuthor Commented:
I set the policy in Exchange Hybrid but it still did not work

dongocdungAuthor Commented:
It works for now after I change the MachinePolicy to undefined.
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