I have the 14376 ISO. I'm wondering, how do I exactly upgrade to the latest Insider? I have an Insider email already. I also have the ISO in my USB made from Rufus.
Don't use usb you will not upgrade like that into the OS mount the iso by clicking on the iso file and run setup
Run setup.exe from the iso/usb/dvd and upgrade You don't have to use a MSA (microsoft account) to use an insider preview, you can simply select an offline windows account. You just need an established HWID on that system (or a kms solution) to get activated.
@endbase, hello my friend. I just got back. I was able to update to the latest Windows Insider thanks to your information. At first, I got an error about MIGRATE data. So I just enabled Windows Defender, disabled Fast Boot + Secure Boot and everything was perfect.