[NAME]  - For a clean install: Plug the SATA SSD into the SATA data port farthest from the battery (SATA0). Should be the one where the HDD is connected now (and it might be blue). While you're in there, if the motherboard battery is old, this might be a good time to replace it. - CR2032 3-volt coin cell battery. Then set BIOS to AHCI, save the change, exit setup and power off. To boot from the Win 10 USB stick, plug the stick into a USB connector while PC is fully off and restart the PC. When F12 Boot Options appears in the lower-right corner of the screen, press F12. BIOS will detect the device and the USB boot option should appear on the F12 menu. After Windows is installed and all the updates installed, you can shut down and connect the HDD to SATA1 or another SATA port. When you boot the PC, you might need to use the F12 menu to boot from the SSD again. Once you know it booted from the SSD via F12, search in Win 10 for Disk Management. When Create and format hard drive partitions appears in the search results, click it to open Disk Management where you can initialize the HDD (ALL files deleted!) so it can be used for storage. BTW: What OS is on this system now? If it's Win 7, make sure you have the Microsoft Product Key from the sticker on the PC. You'll need to enter that during the Win 10 installation. If this system already had Win 10 on it, the key is embedded in the motherboard so click "I don't have a key" on the page where it asks for the key. After Win 10 is installed, you can activate it on the new SSD by logging into your Microsoft account from the Activation screen.
The Crucial MX500 when I install Win10. This will be my first time working with an SSD, are there any changes I need to make in bios etc? 
XPS 8300, Crucial MX500 SSD?