Question: Is It Safe to Delete Installer Folder from Windows 10?

The C:WindowsInstaller folder contains Windows installer cache, it’s used to store important files for applications installed using the Windows Installer technology and should not be deleted.

Is it safe to delete Windows Installer files?

Is it safe to delete files from the WindowsInstaller folder? No. One should not delete files from the WindowsInstaller directory as these files are required to repair, update and uninstall applications. That said, it’s safe to delete orphaned files (scroll down to see how to delete them).

How do I clean up the Installer folder in Windows 10?

You can’t delete it like any folder, though. Instead, you’ll have to use Windows 10’s Disk Cleanup tool. To run it, type Disk Cleanup in the search bar, and then click the Disk Cleanup program entry that appears. Click “Clean up system files,” and the tool examines your system for files to clean.