This HD you want to install is located in an external enclosure? If so, what's the make and model? Without that info we're stuck.
We also need to know if that hard drive is IDE or SATA, soooooo, back to the first paragraph, second sentence. The HD in the PC is IDE.
Here is the page for the computer:
I was given a HP Paviliona210n and I'd like to add a second HD to it.
The HD is mounted in an enclosure but Ican't figure how to remove that or
how to install a seconfd HD any experts out there? Thanks for any help. Van