I am doing some housekeeping on application servers I am responsible for. All applications are working fine I just want to free up space on the drives.
Having come across the WinSxS folder which I know is very important and should not just delete files as I could quite easily break the server or applications.
I was going to start with a simple disk cleanup but discovered this is not installed as standard on Windows Server 2012, it need to be added as a role then requires a reboot which I'd rather avoid outside of the monthly scheduled reboot.
What other options do I have and how do I know which files can or can't be deleted?