How to Clear out old Symantec files Manually

HI

Is there a way to clear out old symantec files manually that the symantec manager may have created.  E.g. definitions, updates etc...

I have symantec manager 12.1.4 installed on a windows server 2008 R2

I am strugglling for disk space and wanted to clear out any files that are not needed manually if at all possible.

Any comments on the matter greatly appriciated.