We can begin with the blue ﬁeld that is eclipsed when the computer successfully boots up. It is not, as I will try to show, a screen, a window, or a portal but the ground for any display of information whatsoever. Blue is the ﬁeld that palpitates between the appearance of simulated life, after booting up, and the void of information absence, negation, or implosion. Nearly all the drive characteristics, addresses, and memory of the computer are activated by the system conﬁguration that grounds itself on this blue ﬁeld. Even its acronym, BSOD (Blue Screen of Death), provokes anxiety in its community of users and its actual appearance is met with convulsions and despair. This blue ﬁeld is the most feared colour in the Microsoft world, occurring whenever something has gone terribly wrong, when the system encounters a fatal error, or when the system fails absolutely.