Instead of having Rescue and Restore discs the PQSERVICE partition holds all you need to get you back to the day your laptop was delivered.
Its usually hidden so you can not see it do not set system restore for this partition.
System restore is for widows to get back to an earlier date and time
Acer erecovery management. is to start the tools on the PQSERVICE partiton to set your machine back to factory settings