Hello , sorry about your problems. My name is Marco and I will do my best to help you.
Perform a Clean Boot
A clean boot starts Windows with a minimal set of drivers and startup programs. This can help eliminate software conflicts that occur when you install a program or an update or when you run a program in Windows.
-Type msconfig in the Windows search bar and select System Configuration.
-Go to the Services tab, check the box to 'Hide all Microsoft services', and then click 'Disable all'.
-Go to the Startup tab and click 'Open Task Manager'.
-Disable all startup items, then close Task Manager and click OK in the System Configuration window.
-Restart your computer and check if the issue is resolved.
https://support.microsoft.com/en-us/topic/how-t...
If the problem is resolved, it will mean that an application at startup is causing this conflict. So, re-enable one service at a time to determine which app is the culprit.
Other solution:
Re-register the DLL File
If the dxcore.dll file is not correctly registered in the system, you can try to manually re-register it.
-Command Prompt as an administrator.
-Type the following command and press Enter:
regsvr32 /u dxcore.dll
regsvr32 dxcore.dll
Restart your computer and check if the issue is resolved.