Hello John. at the end of that trojan horse it shows a tag “.Gen” this means that this is a generic detection. The best thing to do would be to submit that file to www.virustotal.com and find out if it’s infected or if it’s a false positive.
Autoruns in the main harddisk can be safely deleted. A harddisk doesn’t need an autorun to boot to windows. The warning it says is because if the autorun was like in a USB for example and you delete the autorun. The file that was suposed to execute as soon as the usb is connected won’t work automatically. You’ll have to open the file yourself.
As for the infections you seem to have. Download superantispyware and Malwarebytes and do a scan. You should be clean afterwards. If not, then inform what happened