InstallerClean

InstallerClean 3.4.0

Open source tool for the C:\Windows\Installer folder: move or delete the files nothing needs

  • By No Faff
  • Open Source
  • Updated Oct 14, 2026
Download for Windows

About InstallerClean

InstallerClean removes unneeded files from C:\Windows\Installer, a hidden folder that fills up as you install and update software. It asks Windows Installer what it still holds a record of, and reads the same records out of the registry as well, then offers a file only when nothing installed on the machine claims it, or a newer patch has replaced it. Where it cannot get a straight answer, it holds the file back. Delete is permanent; Move puts the files in a folder you choose instead. Free and open source, no ads, no tracking. The first time it finishes on a PC it can send one anonymous report of how the run went, if the box on the result screen is ticked.

Technical details

PublisherNo Faff
Version3.4.0
Release date2026-10-14
LicenseApache-2.0
Installer typeinno
Architecturex64
Package IDNoFaff.InstallerClean

Links & install command

Install InstallerClean from the command line with Windows Package Manager (winget):

winget install --id=NoFaff.InstallerClean -e

cleanupdisk-spaceinstallermsiopen-sourcepatchcleanerwindows-installer

Older versions

  • 3.3.0
  • 3.2.0
  • 3.1.2
  • 3.1.1
  • 3.1.0
  • 3.0.0
  • 2.3.0
  • 2.2.0
  • 2.1.0