purpleorchid

If OP needed simplicity and a guide.

How about these guides?

https://www.filecroco.com/download-rmprepusb/

https://rufus-usb.en.uptodown.com/windows/download

https://www.winpwd.com/create-windows-10-boot-usb.html

And in my opinion,Rufus is more helpful than Etcher,as it is professional.

On 9/20/2020 at 12:17 PM, KeeTua said:

Rich gave some good suggestions.

I would suspect damaged line caused by rodents or corrosion.

Possible.

Rufus and RMPrepUSB for you to make a bootabke USB,they both support Windows and Mac.

It is time to upgrade Windows 7 to Windows 10.

In the next days,i will also do somthing about Windows update.Good luck.