Dell laptop with i3 and 1511 - OS Upgradeable?

I worked on a Dell Inspiron 15 3000 series (i3) laptop yesterday. I notice it has the original Win 10 V1511 that it came with when new and has never been upgraded to later Win 10 versions. I did search for updates and it found some but never offered a Win 10 OS upgrade. I considered manually upgrading it but the user needed the PC for some Excel work so I didn't try anything.

Should a later Win 10 version been offered via the updates? Or is the hardware preventing upgrading?

Windows update has proven to be the most unreliable method of upgrading Windows 10. Why not just go to:
Download Windows 10

and click the Update Now button?

I considered that but wasn't sure and the user (our Preacher) needed the PC to finish a financial report.

fireberd said:

I considered that but wasn't sure and the user (our Preacher) needed the PC to finish a financial report.

I'd make a system image then try.

I can confirm (having done so on one of my machines) that you can skip generations and upgrade direct to 1809. I did so successfully from the original 1507 (10240).

I did a Macrium full disc (all partition) backup before I gave it back to him. I'll see when I can get it back and try updating.
Still don't know why the Windows Update "check for updates" did not show any Version updates.

That sounds like a very good possibility. I've told the user, when we both have time I'll manually update it.

Just out of curiosity, how did your Preacher avoid all the updates between 1511 and 1809? (Never going online would work.)

Good question. Its had updates but never the "big ones". He is the type that only does what the PC tells him. He has never manually "check for updates". The only added software I saw was MS Office and a couple of Church related apps. I don't think the laptop has had much use as he does most of his work on a desktop.