It just shows how deep these infections can go sometimes. Something that many won't accept when we suggest a whole battlefield of anti-spyware, and they say but I have, "so and so", and surely that's enough.
I just wanted to let the guys know who gave me some advice(& anyone else) that ive managed to find the problem & after hours managed to sort it out.
I had a trojan in my system which remotely took over my pc & which my anti virus etc didnt pick up on. My arsenal either wouldnt work,wouldnt update,download,scan properly etc. Eventually i managed to get one which did run & pick it up although couldnt delete,move it,quarentine it or anything. To be honest im not sure which one sorted it out,it may have been avast which scanned before windows started or it may have been system mechanic six which i thought was more of an optimizer but did pick up stuff my others didnt,& running a scandisk. I couldnt even open my security center in the beginning but couldnt work out why (novice)So ive now got defender & can access my security center..Thanks for your help guys