How to fix the RPC server is unavailable error | Windows101Tricks | Scoop.it
From howtofixwindows.com - January 21, 2018 10:06 AM
Getting The RPC Server Is Unavailable message ? then it’s likely due to maybe one or two services ( DCOM Server Process Launcher, Remote Procedure Call (RPC) and RPC Endpoint Mapper ) that the RPC server depends on for its functionality, not working/running or it could be the result of file corruption.