InstallerClean 1.8.1

InstallerClean is a specialized open-source system utility designed to safely reclaim disk space by identifying and removing orphaned files from the hidden Windows Installer directory. Over time, the C:\Windows\Installer folder accumulates redundant .msi and .msp files—remnants of uninstalled software or superseded updates—that Windows often fails to clean up automatically. By targeting these "ghost" files, InstallerClean can free up significant amounts of storage, sometimes ranging from a few gigabytes to over 100 GB on systems with heavy software turnover.

The tool prioritizes safety and transparency, directly querying the Windows Installer API to verify which files are still registered and required by the system. Version 1.8.1 provides a detailed interface where users can inspect individual files, their associated product names, and digital signatures before taking action. Whether you are managing a small SSD or maintaining a high-performance workstation, InstallerClean offers a secure, data-driven approach to pruning system bloat without risking the integrity of currently installed applications.

• Orphaned File Detection: Scans the system to find installer and patch files left behind by programs that have already been uninstalled.
• Superseded Patch Identification: Intelligent detection of old patches that Windows has officially marked as replaced by newer updates.
• Safe Removal Options: Choose between moving unneeded files to a safe backup location or sending them to the Recycle Bin for easy restoration if necessary.
• Deep API Integration: Uses direct Windows Installer COM interface calls rather than risky WMI queries, ensuring a stable scan without triggering accidental repairs.
• Detailed File Insights: View the exact size, reason for removal, and digital signature of every file identified during the scan.
• Pending Update Awareness: Automatically warns users if there are pending system reboots or updates that could affect the accuracy of the cleanup.
• Command Line Interface (CLI): Includes a dedicated console launcher (installerclean-cli) for system administrators who wish to automate cleanup via scripting.

Download InstallerClean

InstallerClean 1.8.1.rar - 89.72 MB