Windows has a hidden power mode called Ultimate Performance that can enhance PC performance without hardware upgrades. This mode is typically concealed on consumer PCs and is primarily intended for high-end workstations running Windows Pro, but it can also be accessed on Windows Home. To activate it, users need to open PowerShell and enter a specific command, then select Ultimate Performance from the power plan options. While this mode maximizes speed and responsiveness, it consumes more power, which can decrease battery life on laptops and generate additional heat and noise from the cooling system. It is recommended to use this mode during intensive tasks and not in quiet or public environments.