Hi,
How do I switch off SELinux and what's the criteria for judging whether I need it or not?
SELinux is for highly critical security needs. Most people don't need it on desktop machines. But it is good thing to learn. http://www.nsa.gov/selinux/ http://en.wikipedia.org/wiki/SELinux
If I remember correctly MS was against SE(Security-Enhanced) being added to linux.
Regards Balwinder Singh