We are unable to launch the Exchange Management Shell for Exchange 2010 on Server 2008 R2 and the Exchange Management Console does not function because if depends on the Exchange Management Shell. When launching EMS it reports an error "File C:\Program Files\Microsoft\Exchange Server\V14\bin\RemoteExchange.ps1 cannot be loaded because its execution is blocked by software restriction policies." After enabling logging for Software Restriction Policies the SRP log reports "powershell.exe (PID = 22972) identified C:\Program Files\Microsoft\Exchange Server\V14\bin\RemoteExchange.ps1 as Disallowed using SRPv2 rule, Guid = {c71b5435-1293-4848-b0a3-b53066c76ca2}"
We are not currently using Software Restriction Policies. We have been unable to identify the source of the SRP that is blocking the Exchange Management Shell. A review of Local Security Policy, Local Group Policy and Domain Group Policies has not found any Software Restriction Policies. We have since created a Software Restriction Policies that specifies that all applications should be permitted and that Administrators should be exempt from SRP. The registry entries for "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer" and "HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Windows" only show the newly create policy that permits all applications. The Exchange Management Shell is still being blocked.
Further troubleshooting advice would be appreciated.