"Access is denied" when you attempt to start the Base Filtering Engine service, after upgrading from Windows Server 2003 to Windows Server 2008 R2

Here’s an issue that appears deceptively simple. After upgrading a Windows Server 2003 based system to Windows Server 2008 R2, ping and RDP are not working. On checking, the Windows Firewall service hasn’t been started because the service on which it is dependent, the Base Filtering Engine service, has not started. The Base Filtering Engine service fails to…

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