Windows 10: Desktop's Screen flickers

I recently updated my PC to 2004 update and since then my screen is not stable and unable to do any work. Not even playing games.

:)

 

Screen flicker and hangup on desktop screen

The short term fix for me was to roll back to Windows 7. I did not have the time to work through the issues but will try again in a week or so. I had a call in to the Microsoft Answer Desk and got a call back after I rolled back. Pasted below are the suggestions
to attempt find the problem. In my case, I suspect Norton was the culprit since that was the common product on both my desktops and I was not seeing a flicker in Task Manager window.

From the Microsoft Answer Desk:

Here are the Steps for the Flickering issue.

If we see the screen flickering after sign-in there are two possible causes - apps causing Explorer to crash, or display driver issues.

To start, press this key combination: CTRL+SHIFT+ESC

If this opens Task Manager and that window is NOT flickering:The likely cause is Software Compatibility issue causing Explorer.exe to crash repeatedly.

• Use the File, Run option in Task Manager to open additional tools as-needed. Be sure to check the box to run tools as Administrator. These could include:
  
  appwiz.cpl: Opens Programs and Features
  
  compmgmt.msc: Opens Computer Management
  
  cmd.exe
• You can search for crash events in the Event Logs and find if any third party DLLs are the faulting module in the Explorer,.exe crashes Or uninstall software that is likely to include shell extensions.
  
• If removing software does not resolve the issue, use these commands to repair Windows:
  
  dism /online /cleanup-image /restorehealth
  
  sfc /scannow

We have reports that removing these apps help resolve the issue:

• Norton Antivirus
• Other AV solutions
• iCloud
• IDT Audio (faulting module IDTNC64.cpl)

If Task Manager is flickering, or it didn't open, proceed with display driver troubleshooting:
The likely cause is a display driver or display hardware issue.

• Boot to Safe Mode with Networking.
• Use the same steps here as for Black Screen issues - if dual chipset, disable built-in graphics, if still flickers, try with only the other chipset enabled.
  
• If this does not work, or there is only a single chipset, uninstall the device and remove the driver software.
  
• Then boot into Windows and update the drivers to the latest from the manufacturer.
  

Here are the Steps for the Flickering issue.

If we see the screen flickering after sign-in there are two possible causes - apps causing Explorer to crash, or display driver issues.

 

screen flickering before booting to desktop

Hi,

This issue with flickering screen in Windows 10 could have happened due to incompatible or outdated driver. We suggest that you follow the steps provided in this

article to troubleshoot flickering screen.

Let us know if you require further assistance.

 

Screen flickering in Windows 10 safe mode

I haven't made any changes on my device. This screen flickering is only happening in Safe Mode.