Complex sentence: Therefore, it is highly recommended to ensure that laptops are connected to an external power source when first initializing ReadyBoost, a cooling mat or other airflow device may also be warranted on systems which regularly operate at high temperatures.
Split into simpler sentences: Therefore, it is highly recommended to ensure that laptops are connected to an external power source when first initializing ReadyBoost. A cooling mat or other airflow device may also be warranted on systems which regularly operate at high temperatures.