Mathie,
Are you sure about the two HDDs? Majority of consumer notebooks do not have two internal HDDs. If you do have two internal HDDs then both drives should be visible under My Computer (unless they are set up in a RAID config to mirror each other)If in fact you only have one HDD and it is full then easiest solution is to purchase an external HDD and dump some files from your notebook to the external drive or you could take your notebook into a PC shop and have atechnician install a larger internal HDD. Just make sure they back your data up first. Hope this helps
Disclosure:
TimWoodChip is an Intel employee and aspirational sponsor of tomorrow
#tomorrow
I have an Acer Aspire 5710 Notebook. There is an Intel core 2 duo processor, 2 MB L2 cache, 1 GB DDR2, 80 GB HDD. One of the 2 hard drives is now full and I wish to use the other one. Can someone tell me how to switch over the hard drives if it can be done? It dosent seem to swap over automatically, and I have done the usual disk clean up, etc. Cheers

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic