Ping.exe stands for the command line application available for all Windows operating systems. It was elaborated in order to check whether a certain PC on a network or the Internet really exists and is connected to this network. The legitimate application is typically launched from C:\WINDOWS\system32\. In general, it shouldn’t cause any bugs or difficulties. Regretfully, there are malicious tools presenting themselves as Ping.exe and thus causing major PC slowdown due to extremely high CPU usage. You can terminate Ping.exe by means of Task Manager but it will re-load itself within a couple of minutes and would cause the same 100% CPU usage, just as before.