Hi, I would re-install at least SuperAntiSpyware.
I have not seen your earlier thread, a link to it would have been helpful - ie a 'click here' ......
I am not keen on Defender, if it was mine I would get rid of that. Just my own preference.
If you got to Start>Control Panel and click on Windows Firewall, that should give you some indication of what firewall you have - possibly just Windows own.
Card Reader, these are extremely useful, you can get a USB multi-card reader very cheaply from any PC shop. click here this is just an example, there are plenty of others - a card-reader is a 'Must-have' these days.