|If my response wasn't correct, why did you mark it as Solved?|
You didn't provide enough info about your computer plus your explanation is unclear. And we need the exact model number of your computer. There are numerous Dell Studio laptops...14xx, 15xx, 17xx, XPS models, etc. The configurations & hardware are different. Look for a label on the underside of the laptop.
Click >> How to find your Dell laptop model and service tag
If you don't have the recovery discs, create them! Can you still boot into Windows? Were the discs ever made (it can only be done once)? If not, they can still be created. Or you can boot from the recovery partition & reinstall Windows from scratch. As I told you in your other thread, you will lose everything when doing the recovery but being that the laptop is a "hand me down", probably the best thing to do would be to start with a clean slate. I posted this link in the other thread....did you try it?
Click >> Restore Windows 8 using the Factory image restore method in Dell Backup and Recovery
Doing a System Restore should NOT have messed with your network settings, but we have no idea what you did, how you did it, or why you did it? And plugging an ethernet cable directly from the laptop to the router should auto-disable the laptop's wi-fi. If you need to install something on the Dell, download it with your HP, copy the file to a USB flash drive (they're about $5-10 depending on size), then transfer the file to the Dell.
Click >> USB flash drive (example)
message edited by riider