Make sure to uninstall all other antivirus and malware programs by deactivating the license and uninstall and use their cleanup tool if they have one. (Be sure to copy the license if it is paid program for reinstall. Disconnect all outside hardware except mouse.
Disconnect totally from the internet after making the ISO.
Try opening settings>>update and recovery>> Recovery>>advanced startup> Restart now. Hopefully it wiill boot from the USB or DVD you made. .Or download the Iso to your computer right click on the iso and mount it .Run setup from there.
Hope this will help.