Microsoft is testing a preloading feature for File Explorer in Windows 11, aimed at enhancing its performance by loading it in the background before user interaction. This feature is currently available in Windows 11 Insider Preview Build 26220.7271 for the Dev and Beta channels. Users can enable it through File Explorer settings, but its public rollout is uncertain as Microsoft is still exploring its viability. Additionally, a known bug allows users to temporarily boost File Explorer's performance by double-tapping Control + F11, though this may disrupt other system functionalities.