Most interesting free and opensource software of the month:
TweakPower is a powerful Windows optimizer: clean up, system maintenance, customize Windows, Economy Mode, system settings, security, etc…
HDCleaner is a Windows cleaning software, 1-Click Maintenance and Automatic Maintenance, registry cleaner, optimize Windows services, etc…
RegCool is an advanced Windows registry editor.
RunPE Detector can be used to detect malware, RATs, Trojans, Backdoors Crypters, Packers and memory resident malware on Windows computers.
QuickViewer is a fast Windows image viewer.