The ability to download the Dell image ends with the warranty -- unless this system is in warranty, you will find the download attempt fails, even if you can get it started. Use the Microsoft Media Creation Tool to prepare an install flash drive: [URL]  
I have a G5 15  5587 laptop. It has the latest BIOS version 1.21. There is an empty 160GB SATA SSD installed. I want to use the SupportAssist OS recovery (a.k.a. BIOS Connect) to install an OS. When it boots it passes successfully the Pre-Boot System Performance Check, but at the end the only option is Shutdown. Pressing F12 at boot displays a boot menu, but there is no SupportAssist option. SupportAssist OS Recovery option in the BIOS is enabled. How can I trigger SupportAssist to download and install an OS?
How to trigger SupportAssist OS recovery?