My desktop shows command prompt

[Sham254]

It starts up normally but after I log on, the desktop screen displays a black screen with a command prompt 

[IT_WinSec]

Hello @Sham254 

Thank you for posting in the HP Support Community. Welcome !

Issues usually don't occure just like that out of nowhere - they are related to either bugs, updates, changes. It may be caused by :

• a special setting enabled called Safe Mode with Command Prompt or
• some 3rd party app or
• some updates applied

If the problem still exists, try "turning back time" by using System Restore in Windows

- Please, shutdown the computer using the power button (pressed and hold for a few seconds until PC powers off)

- Power the computer back on.

As soon as you press the power-on button, immediately begin hitting the Esc button (like tap-tap-tap) before any logo appears. This should open a HP Startup Menu >> https://www.youtube.com/watch?v=GSN0qzXayUY

- Choose F11 for System Recovery options.

The computer should boot from it's recovery partition to open you various recovery options. Note, that F11 option will only work if the recovery partition is there (not deleted) and intact. From there, you have prenty of options to choose from. Every HP computer comes with recovery partition present to assist in tough moments.

Please, perform "System Restore" first in an attempt to fix the issue. Please, restore back to previous days (restore point) where the issue was not present. Here is more info:

>> http://support.hp.com/us-en/document/c03327545#AbT5

>> https://www.tenforums.com/tutorials/4588-system-restore-windows-10-a.html

Hope this helps. Let me know how it goes. Provide your feedback/reply.