Windows 10: Adminstrator Prompt

Hello, my desktop no longer displays the administrator prompt when I need to sign in as an administrator. Instead of appearing, all I get is my desktop background picture, and it just freezes there. If anyone can help that would be awesome!

:)

 

Installation media boots to command prompt

I've just booted from known working install media to see exactly what it does when booting. The sequence of events is...

• Windows logo on a black screen
• circling dots appear beneath the logo
• light blue 'Please wait' screen with circling dots
• a command prompt window (very briefly)
• the initial Setup page appears

Do you see steps 1-3? If so, it appears you have stopped at step 4, suggesting that something on the disc cannot be read.

Does the disc boot properly in another machine? If so, try cleaning the laptop's drive lens then try booting from the disc again.

If not, make new install media with Microsoft's Media Creation Tool, either as a bootable USB, on an ISO that you can burn to another disc. At Step 8 in Option One of this tutorial you can choose between making a USB or an ISO.

Download Windows 10 ISO File

 

Subsystem ID mismatch

Run atiwinflash from the DOS prompt in Windows. Follow the steps listed in the HD6950 mod article for DOS flashing.

 

command prompt will not open in safe mode with command prompt

Would I just follow the same steps within safe mode after hooking up to the other system?