I have a dell demension xps t450. Dinosaur, iknow, it has a 20 gb hard drive, 5.63 gb still free. To try for more speed, I have added another 20 gb hard drive and it not being used. 18.6 bg available 18.6 still free. PC is still slow.? Any suggestions?? Please!

An additional hard drive is not used automatically. You have to move files and programs onto the drive. Data files can just be moved over. Programs have to be uninstalled and reinstalled to the new drive.

I have a dell demension xps t450. dinosaur, iknow, it has a 20 gb hard drive, 5.63 gb still free. to try for more speed, i have added another 20 gb hard drive and it not being used. 18.6 bg available 18.6 still free. pc is still slow. ?? Any suggestions???? Please!!
Expand your RAM instead of HDD, Also clean the Temp folder.