system-diagnostics

Retrieve deleted files with advanced scanning on various drives and file types. The free trial recovers up to 500MB, with Recovery Vault for protection and disk backup in case of failure.

EtreCheck is a simple little app to display the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to help people help you with your Mac.

SANDRA is a system analyser that includes benchmarking and testing modules. Its scope of work is not restricted to the local system, though. It can analyze remote systems on a Windows domain.

The Sysinternals Troubleshooting Utilities have been rolled up into a single Suite of tools. This file contains the individual troubleshooting tools and help files. It does not contain non-troubleshooting tools like the BSOD Screen Saver or NotMyFault.