Windows' Reserved Storage feature allocates 5GB to 10GB of SSD space for system files, updates, and temporary data, impacting the usable storage capacity. Users can clear cache and utilize Windows PC Manager to free up space. To disable Reserved Storage, navigate to Settings > System > Storage > System & Reserved, and use the command: DISM.exe /Online /Set-ReservedStorageState /State:Disabled. For SSDs of 512GB or more, the impact is minimal, but for smaller SSDs, reclaiming this space can be beneficial. It is recommended to re-enable Reserved Storage before system updates using the command: DISM.exe /Online /Set-ReservedStorageState /State:Enabled. A minimum SSD capacity of 512GB is advised for a seamless experience, and upgrading or using external storage solutions is suggested for enhanced capacity. Caution is advised with budget SSDs due to potential reliability issues.