Hi and thanks for reaching out. My name is Bernard a Windows fan like you. I'll be happy to help you out today.
I understand the issue you have, there is nothing to worry I am here to help, I know some of these steps are already done, you have just skipped it if you think it will have the same result.
Method 1. Reinstall Windows Defender
Open the registry, then go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender
Then delete the Windows Defender folder, then restart the PC and check it again.
Method 2. Disable anti-spyware of Windows defender
Open the registry, then go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender
Double-click DisableAntiSpyware and set its value data to 1.
Method 3. Do clean boot:
A “clean boot” starts Windows with a minimal set of drivers and startup programs, so that you can determine whether a background program is interfering with your game or program.
- In the search box on the taskbar, type msconfig and select System Configuration from the results.
- On the Services tab of System Configuration, select Hide all Microsoft services, and then select Disable all.
- On the Startup tab of System Configuration, select Open Task Manager.
- Under Startup in Task Manager, for each startup item, select the item and then select Disable.
- Close Task Manager.
- On the Startup tab of System Configuration, select OK. When you restart the computer, it's in a clean boot environment.
troubleshooting reference: https://support.microsoft.com/en-us/help/929135...
Let me know how it goes and I hope that helps.
Bernard