Restore & Secure Windows Server

My production Windows server has gone silent—no RDP, no web console, nothing. I still hold full ownership credentials with the hosting provider, so authorized recovery options (rescue console, snapshot-based rollbacks, etc.) are available... (Budget: ₹12500 - ₹37500 INR, Jobs: Change Management, Computer Security, Network Administration, Network Security, System Admin, System Administration, Technical Support, Troubleshooting, Web Security, Windows Server)