But why is that? It still seems to me almost like magic. The computer is Amstrad PC2086/30, and the game that I have to run first is either The Cycles: International Grand Prix Racing or Grand Prix Circuit, both by Accolade. If I don't do this, the games such as Prehistorik or Dangerous Dave (1990, Softdisk) won't run, the screen turns black, and the reboot is the only thing that helps.
The games that don't need this trick are, for instance, Prince of Persia and Golden Axe.