C:\Windows\Installer folder has grown over 10 GB. I noticed that some *.msi and *.msp files are in C:\Windows\Installer but not the mentioned in the registry (e.g. I can see a file named "104a0288.msi" in C:\Windows\Installer but searching for "104a0288.msi" in the registry editor doesn't bring any results). Can I safely remove those files?
I use Windows 7 SP1 x64 Ultimate.