Tips for fixing a large Windows Installer folder

August 22, 2020 by Logan Reynolds


Following are some easy ways to resolve the Windows Installer large folder problem. On the! The C: \ Windows \ Installer folder is used by the operating system and should never be modified directly. To uninstall applications, uninstall them using Programs and Features in Control Panel. You can also run Disk Cleanup (cleanmgr.exe) in elevated mode to free up space.



If you install the program on Windows, the MSI installer package for the program is copied to the installer folder. The installation folder is a protected folder with system and hidden attributes and is located in the Windows folder.

What Is The Windows Installer Folder?

The installation directory is used to store installation data files for various applications installed on the computer.

A little later, you can decide whether you want to repair, uninstall or reinstall the program through Applications and Features or Programs and Features in Control Panel. At this point, the system needs the MSI package from the installation folder to repair, reinstall, or uninstall the software.

If the correct installation package file (MSI or MSP) is not found, Windows will display the error “Installation source for this product is not available. Make sure the Source is available and accessible. "try to fix or remove the problem.

How To Safely Empty The Windows Installer Folder To Free Up Space

Over time, the installation directory can grow and take up a lot of hard disk space. You may ask if you can remove files from the Windows \ Installer directory.

windows installer folder large

Sometimes Windows installation fixes are lost during software removal. When a program is uninstalled, the corresponding MSI package remains in the Windows Installer folder as it were. Only lost packets can be removed.

There is a useful program called PatchCleaner, identify the lost files in the installer folder. PatchCleaner then offers you the option to remove the lost files or move them to another location for testing.

The list of package files in the installation folder is then compared to the list of products in the registry. MSI files that are not referenced in the registry are lost.

You can delete the lost installation package or move it to another folder and safely delete it after a few days.







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