Both HP and Acer only provide recovery software on the drive itself these days and ask you to insert a blank dvd to make one when you first turn on the system.
If you have made that disk then fit the HP drive to your acer, run that disk and reinstall it. all good.
If you don't have that disk then you wil have to reinstall it with a standard windows disk using the license code on the bottom of your laptop. then go to acers website and download the drivers etc.