Hi,   just downloaded tweaking. com windows repair (free)  to hopefuly remove a microsoft error popup that shows just after start up of windows 7, error ox80073bo1  this occured after microsoft security essentials was uninstalled because it kept freezing during a scan,   and would not let me re install,   if the software will remove this error,  please explain how to go about it,   not very technical!   thanks in anticipation.