after the last action wih was the tdds i did a full scan and there was no virus! also there is no MBR.dat in the whole pc and in the virus chest there is no virus. i am doing now an new scan with the avast an until now there is no infected files :S what happend? i couldn’t delete or fix the infected file and there isn’t either to the chest :S and avast didn’t find any infected file… is this good… i suppose yes but… i will scan my pc in a boottime and i will inform you! thanx for your time!