CPUID - System & hardware benchmark, monitoring, reporting CPU-Z is a freeware utility that gathers information on some of the main devices of your system. CPU-Z does not need to be installed, just unzip the files in a directory and run the .exe. In order to remove the program, just delete the files. The program does not copy any file in any Windows directory, nor write to the registry.
While Windows Event Viewer comes across as a useful tool for viewing event logs and fixing problems & errors with Windows and other programs, it can also be used as a monitoring tool for tracking trespassers