Windows 10: login screen locks up

I tried to install Windows 10 fresh from a usb but it said my Windows 7 key didn't work and I never got a Windows 10 key so I'm not sure what to do, the upgrade install won't login. I enter password, then proceed but it locks up. if I click anywhere after a minute the screen goes black ave nothing happens.

can anyone tell me
a: where to get the Windows 10 key so I can do a fresh install

or b: how to fix this login screen
I tried safe mode repair but it said it's unable to repair and I should restart the pc.

lol
thanks *Smile

:)

 

Windows 10 Insider Preview 14342 Lock Screen background is black.

When I switch on my laptop, the Lock Screen background picture(which I've set on Windows Spotlight) shows only a default picture each time. Which also shows up on the login screen

Now when I lock the laptop the Lock Screen background is completely black, though the windows spotlight image does show up on the login screen. ****? How may I repair this on my side or is there gonna be an update?

Edit: After much research I've come to know that the lock screen on boot up is called the system lock screen, and the login screen after that is the system login screen. The screen that is black is the USER lock screen. Cortana, the clock and everything
else appears fine on the black screen.

 

Windows 10 Lock Screen From Login Screen

Hello, I know from the Windows 10 desktop I can use windows key-L to lock the computer. I can use ctrl-alt-delete and choose lock to lock the computer. What I want to be able to do, is move the mouse or press enter to bring up the login then cancel the
login screen to return to the lock screen. From the login screen I cannot use Windows-L to lock it or use ctrl-alt-delete and choose lock either. Is there any way to abort the login and return to the lock screen?

 

I have the same problem even though I installed from media. It's been locked for hours and nothing is happening.

 

I don't think there is any way to fix it. I did a fresh wipe and install of Windows 7 then 10 it still locks up at login.

you can uninstall 10 by booting reset at the boot screen before login, it'll run automatic repair which has an option: advanced options, troubleshoot, advanced options, go back to the previous build.

I anticipated Windows 10 for so long, and now I can't use it, so long.

 

How do you boot reset? It's been stuck over night.

 

Hi guys,

Did you follow this guide, regarding upgrading from within windows 7 and activating -- Clean Install after upgrade from 7 don't work !! Can't activate the OS - Windows 10 Forums

This is mentioned in the Common faults thread.

If you don't activate your copy by upgrading first, your key will not be registered for Windows 10.

 

How can I activate it when I'm not even able to login and just stuck on the login screen.

 

@fusionguy200,
I'm sorry, a confusion of different posting in one thread, you are really better off starting your own thread for this issue, as the original poster can log in.
@happyten, Can you please confirm that you installed Windows 10 as an upgrade from within Windows 7.

 

I would, but right now I'm trying what happyten did by going back to previous build. Will try after.