Windows 10: MediaCreationTool stuck on purple screen

I'm trying to repair Windows 10 by using MediaCreationTool with a Windows 10 disc in my computer (already am booted into Windows 10). When I run startup.exe from the disc, Windows 10 Set Up launches and I get the message 'A newer version of this tool is available. You must download and run the latest version to continue.' There is a link to the updated version so I download it and run it. After the 'getting a few things ready' it just gets stuck on a purple screen. Does anyone know why? Thanks!

:)

 

Windows 10 Stuck on white dots sometimes purple screen.

So I built a new computer, but the only problem I have is that each time I try to boot up the bootable drive. It gets stuck on a purple screen. Sometimes white dots. I tried almost everything. Please I am open for suggestions. Thank you.

 

Windows 10 stuck on purple restarting screen

I tried to restart my laptop as a few applications were running slow but after 12+ hours it is still stuck on the purple restarting screen with rotating dots, after inactivity the screen will go into sleep mode, I have tried sitting here pressing a key
when this happens but it's not completing the restart.

 

Windows 10 installation stuck at purple screen

A couple of days ago after updating Windows 10 (not upgrading to but updating) I mistakenly clicked on restart instead of shutdown so it restarted normally after which I shut it down. But the next afternoon when I started my PC it fails to boot and shows a black screen with a blinking underscore symbol. Like the one we see in command prompt or turbo C. After encountering this, I tried to reboot, pressing the f8 key, checking the cables and a lot but nothing hardware related seemed at fault.

After what would be like the 15th failed attempt I got an ISO file of Windows 10 x64 and attempted to install it at which it gets stuck at the purple screen and again to text or such display. However there momentarily appears a command prompt window on the screen which is fast so I can't read or catch it in my camera. However the install remains such at the purple screen. Any help to get my computer back and running would be great.

Edit: Aside from checking the PC, cables etc. I also have downloaded the ISO not twice but thrice and it doesn't seem to work with any of them. Also I am using my old faithful flash drive which I have used since a lot of time so it is definitely not the problem

Thanks