Hi Brent,
You are lucky your AMD CPU is 64bit. 4GB RAM is fine for most basic activities.
There are PCI Express ports for graphics card and even a USB 3.0 upgrade,
Before doing anything else update the BIOS. I believe 1.08 is the newest:
https://www.dell.com/support/home/nz/en/nzdhs1/drivers/driversdetails?driverid=r172546
I’m presuming you downloaded the ISO file for Windows 10 64bit from Microsoft. Don’t use the DELL version - limited drivers, etc.
Download Rufus 2.18 last version for Vista and Window2s XP
https://rufus.ie/downloads/
Run this with a USB thumb drive in a USB port.
MBR Partition Scheme and the USB must be NTFS formatted.
Power on and tap F2 at Dell logo. Under “Main” change Legacy Diskette drive A to “None”.
Also, change the first boot priority to “USB drive”.
Hit F10 to” Save and Exit”.
Remember to change the first boot priority back to “hard drive”.
I may have left a small step out so be sure to carefully read the screens in the BIOS.
Let us know how it goes and don’t hesitate to ask more questions.