In no particular order:
Juninho v Arsenal. Jan 2004. League cup semi final, first leg against the Invincibles. That was when I started feeling that this was our year.
Maccarone v Basel. April 2006. UEFA Cup Quarters. 90th minute winner to take us through to Steau, where he did it again!
Stuani v Brighton. May 2016. Championship. Stadium is bouncing, packed to the rafters, we only need a draw to gain promotion to the Premier League under Karanka. The party started at that moment and even a Brighton leveller couldn't dampen the mood!
Update: I installed the Windows 8 iso on a flash drive and plugged it into the laptop to boot up, but it doesn't appear to be working. Still trying to boot up from the HDD instead and ignoring the USB.
I am still looking for a CD Boot up disc but I'm not even sure if that will work now