black screen of death problem

So I force restarted my computer and it showed up the black screen of death. I can't run in safe mode, I just can boot other OS's, like Ubuntu. I can stay with ubuntu and I thought it was an os problem, so I installed ubuntu but it keeps showing up me the black screen of death. I searched for fixes and some sites said this:

Restart your PC
Logon and wait for the black screen to appear
Make sure your PC should be able to connect to the internet (black screen does not appear to affect this)
Press the CTRL, ALT and DEL keys simultaneously
When prompted, Click Start Task Manager
In Task Manager Click on the Application Tab
Next Click New Task
Now enter the command: ”C:\Program Files\Internet Explorer\iexplore.exe” “http://info.prevx.com/download.asp?GRAB=BLACKSCREENFIX”
Note this command assumes that you are using internet explorer as your browser, if not substitute your browser path and file details for those of iexplore.exe or use the Browser option of Task manager to locate it.

Click OK and your browser should start up and begin the download process
When prompted for the download Click run, the black screen fix program will download and run to automatically fix the issue.
Now restart your PC and the black screen problem will hopefully be gone.

I tried to do this, but I can't. When I press CTRL, ALT and DEL key simultaneously, it just restarts my computer.

Can anybody help me?

Thanks in advance!

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