How to get Windows 10 back after restore to factory settings got Windows 8.1?

healer
healer Member Posts: 31 Die Hard WiFi Icon
edited October 2023 in 2020 Archives
I bought an Acer Aspire E15 with Windows 10 Home a few years ago. The system has had a few problems right from the very beginning and I never got around to deal with it. The one most annoying was the screen turned off or became very dim as soon as the charger was plugged in and turned on. Recently when I had some time I started to look at it. I posted the problem with Microsoft Tech Forum and couldn't have the problem fixed. Eventually I restored it to the factory settings. The problems including the annoying one have gone. However I then found that the recovered factory settings is Windows 8.1, not Windows 10 I bought and paid for. I have asked around and found the free upgrade to Windows 10 is no longer available. What can I do to get the Windows 10 back?