Updating to Windows 10 2004 has display issues

[scopio]

Updated to Windows 10 2004 and at the HP screen it said, “please wait while we install a system program,” words to that effect, which turned out to be a BIOS update which failed.
When Windows 10 2004 loaded the desktop, it had a big pink section as screenshot below, and the taskbar took a long time to load.

Programs loaded slow although they seemed to work as normal.
Restored Windows back to previous version

[Riddle_Decipher]

@scopio Click here to perform a hard reset on your device

If the issue persists, after the above steps, try the below:

1. Turn off the notebook.

2. Plug the notebook into a power source using the power adapter.

3. With the notebook off, press and hold the Windows logo key  and the B key at the same time.

      NOTE:

   On some notebook models, it might be necessary to press and hold the Windows logo key  and the V key.

4. While pressing those keys, press and hold the Power button on the computer for 2 to 3 seconds, and then release the Power button but continue to hold the Windows logo key  and the B or V key until the HP BIOS update screen displays or you hear a beeping sound (usually 8 beeps).

   The HP BIOS Update screen displays, and the BIOS update begins automatically. This might take several minutes, and you might hear additional beeping sounds.

   • If the HP BIOS Update screen does not display, repeat the previous steps. If the issue persists after repeating the steps, skip to the next step to Download a replacement BIOS file.

   • If the Power light turns off, the notebook has turned off because the Power button was held too long. Repeat the previous steps, making sure to hold the Power button for 2 to 3 seconds only.

CLICK HERE FOR MORE STEPS AND INSTRUCTIONS.

(By the end of this article all the issues should be resolved)

P.S: Welcome to HP Community 😉

Let me know how that pans out,

If you feel I was helpful, simply click on Accept as Solution to help the community grow,

That said, I will have someone follow-up on this to ensure you've been helped,

Just in case you don't get back to us, 

have a good day, ahead.

[scopio]

Thank you @Riddle_Decipher .

Unfortunately the laptop has now been returned to its rightful owner after I installed an SSD and cloned the installed HDD and new 8GB memory and with Windows 10 1909 which works perfectly well. I did use HP Assistant which updated the BIOS 
Brand Insyde
Version F.02
Date 24/05/2018

a day before I updated to Windows 2004 and the other BIOS version, which I think was version 06.

[Riddle_Decipher]

@scopio Alright, if you need anything else, feel free to write to us anytime,

And have a good day, ahead.