thank you so far

so this is the good room where to write my problems?
ty
i have in the usb port
the internet modem
the mouse
and the printer
sometimes a memory stick but not all the time
and i noticed that after i restart the computer,it won't start until i unplug the modem
weird.

To give you the best help we have to have all the questions and posts in the same thread.

http://www.vistax64.com/crashes-debugging/294940-bsod-problem.html
Click on this link

Toward the bottom you will see a button, which says post reply.
Click and then ask your questions or make your comments. As soon as you understand the procedure we will be able to give you the great help that we are known for.
All the posts will then be put in one thread. I have already merged your two other threads.