You can use Remote Desktop on your PC to connect to a remote PC from afar.
You will need to set up the host PC to allow remote connection. You will need to know the IP Address of the host PC. You can enter www.whatismyip.com in the browser and Windows will display the IP Address. Proceed with the following instructions:
Click on the Windows icon and select Settings (Gear shaped icon) –> Select System –> About to see the name of the PC
Under Related Settings, select System Info In the left pane of the System window –> select Advanced System settings
On the Remote tab on System Properties dialog box, under Remote Desktop, select Allow remote connections to this computer –> Select OK
Again in the Settings icon, select System –> Power & Sleep –> make sure Sleep is set to Never
Below is the information to setup Remote Desktop on the client PC: