To ascertain how many times a program was executed on a system, where would you typically look?

The registry is the most logical location to check for details regarding how many times a program was executed on a system. Specifically, Windows keeps track of software installations and user activities in the registry, which can provide valuable information such as the last run time and the execution count of applications.

For example, the registry keys under "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall" or similar paths may record execution statistics related to applications. By examining these keys, an investigator can uncover details about when the software was used and how frequently it was accessed.

In contrast, the temp folder is primarily used for storing temporary files and does not provide a history of program executions. The recycle bin contains deleted files, which do not inherently indicate program execution history. Program files, while they contain the installed application itself, do not track usage statistics or execution counts, making them less relevant for this particular inquiry.