Geek Uninstaller vs InstallerClean

Geek Uninstaller is a Windows utility for removing unwanted software. Its free edition runs as a portable EXE on 32-bit and 64-bit Windows, including Windows 11, 10, 8.1, 8 and 7, and requires administrator permissions. After a standard uninstall, it scans for leftover files and registry items. Force Removal is intended for stubborn or broken programs that cannot be removed normally. The free edition can also uninstall Microsoft Store apps on Windows 8, 8.1, 10 and 11, and its interface is translated into more than 40 languages. The Free plan is free, for personal use, and includes no support. Batch uninstall and installation monitoring are not available in the free edition. Paid offerings are presented under different names and terms: Geek Uninstaller PRO is listed at $24.95 a month with a lifetime license, while Uninstall Tool Standard License is $24.95 as a one-time purchase and the Portable License is $39.95 as a one-time purchase. Uninstall Tool, developed by CrystalIDEA Software based on Thomas Koen's code, adds installation monitoring, startup-program management, batch removal and technical support. It can be tried free for 30 days.

InstallerClean scans .msi and .msp files directly in C:\Windows\Installer to identify candidates for removal and reclaim disk space. It checks Windows Installer records and registry information, withholding files when those checks cannot establish that removal is safe. Users can move identified files to a chosen backup folder or delete them permanently. Downloads include portable, setup, and command-line builds; the setup option bundles the graphical interface and CLI. The command-line version supports scan, move, and delete operations for scripting and scheduled tasks, and reports exit codes and Windows Event Log events. InstallerClean is free and open source under Apache 2.0. It requires 64-bit Windows 10 version 1607 or later, or Windows 11, and administrator privileges. It does not scan subfolders or clean the WinSxS folder, and it has no background service, scheduled task, or automatic cleanup. Downloads are unsigned, so Windows may show an unknown-publisher warning; release pages provide SHA-256 hashes and VirusTotal scan results.