Good evening, many thanks for your time and your help.

I´ve followed your advise and instructions with slightly different results.

I used the FRST without problems, but the computer it shutdown by itself when I ran the combofix. When I restarted, the combofix it started by itself producing the log, It took a while and generated a log, but called log.txt instead of combofix.txt, I have attached it.

The computer seems to work fine both on admin and user. without the trz***.tmp opening up and the .ecr files have disappeared. By the way I have been following all the instructions and clean ups from the administrator, not from the user I was having the main problems. I hope it´s ok. Do I need to install the MCShield to clean up the memory sticks and external hard drives?

Many thanks