Window of Opportunity

The Window of Opportunity is the name given to the mythological window where newly empowered Witches who have not decided whether to use their powers for good or evil yet, have 48 hours to make this critical decision. Witches cannot be forced to choose a side, but both sides can entice them. For this reason, evil considers it a flaw in the Grand Design, as they can employ manipulation to lure witches to evil. If the witch does an act of good (such as saving a life), she/he becomes good, and vice versa.

History
The Window was designed eons ago by good and evil to protect free will. The window only presented itself to those who had not decided to use their magic for good or evil yet.

In 2001, Paige Matthews had been new to her powers and was a victim to the Source's attempted temptations lure her to the side of evil, instead of killing her. He possessed Shane (Paige's than boyfriend) and Jake Grisanti (a man accused of abusing his own child) to tempt her to use her power to take the life of an innocent. On the edge of turning evil, Paige almost took Jake's heart, but Leo orbed her out before she could succeed. The Source tried again to persuade Paige, but when he electrocuted Phoebe, Paige shoved him out of the way to save her sister at the last minute of her 48th hour, and this act of good made her a good witch.

Notes and Trivia

 * It is unknown what would happen if a witch doesn't made a decision to use their powers for good or evil. The possibilities to this could be endless.
 * However, its possible that the witch could be put on a side depending if they used their powers for an act - good or evil, prior to the 48th hour without knowing they did so, resulting in the side placing.