While Windows Server 2008 R2 was a highly stable and beloved operating system, it is now an obsolete security liability. The ISO should only be used for offline testing or academic study; it has no place in a modern connected business environment.
An unactivated 2008 R2 installation will run for 60 days (grace period) but will begin shutting down every hour after that. To activate: iso windows server 2008 r2
If a critical piece of hardware or software requires 2008 R2 and cannot be replaced: While Windows Server 2008 R2 was a highly