HOW TO SOLVE RPC SERVER IS UNAVAILABLE ERROR ?

Rpc Server is unavailable

Sometime the RPC server is unavailable message occurred while trying to synchronize the clock.Follow these methods to solve this error :
Method 1
You may try to start the RPC locater service on your computer. To do so, follow these steps:
i. Type ‘services.msc’ in the Start, Run box & press Enter.

ii. In services window, locate RPC locater service in the services list.
iii. Under service status, right click on RPC locater service and select Start.
iv. Close the services window. Restart the computer.
For more information, refer to this link: To start, stop, pause, resume, or restart a service

Method 2
You may run System File Checker SFC scan on the computer which will replace the missing or corrupt files & check if the issue persists.
a. Type ‘cmd’ in Start, Run box. Right click on cmd in the Program list and then select the option Run as Administrator.
b. Type the following command, and then press ENTER on the keyboard:
     sfc /scannow