Only files in the C: Windows Installer $PatchCache$ directory, called the baseline cache, are safe to delete. Do not, under any circumstances, delete. I'm trying to free up some space on my Windows 10 laptop and C: Windows Installer $PatchCache$ is showing as 2.9GB using the FolderSize app. Can Windows Installer Files be moved or deleted from the Windows. I have 8.6 G and C: Windows Installer File $PatchCache. Delete files in the%windir. Only files in the C: Windows Installer $PatchCache$ directory, called the baseline cache, are safe to delete. Do not, under any circumstances, delete.

* Original Title: Deleting / Moving Some Files from the Windows Directory I have ran across different responses to my question - and probably will here. In C: Windows Installer Files, I have 8.6 G and C: Windows Installer File $PatchCache$ has 4.5G (which actually leaves C: Windows Installer Files really 4.1G. Can these files be moved to another storage device or is their a utility to run to see what files are just no longer needed?

I use CCLeaner and PerfectDisk already. Windows 8.1 Laptop 120G SSD. Hi Corey, It is not recommended to move the operating system core components and files to a drive other than the operating system drive. Because they will cause instabilities in the operating system files. The Windows Installer Cache, located in c: windows installer folder, is used to store important files for applications installed using the Windows Installer technology and should not be deleted. 3cx License Key Free.