Hello SelimKoyuncu2,
Good day! I'm John and I'll be happy to assist you today. I know this has been difficult for you, Rest assured, I'm going to do my best to help you.
This means you have 18 processes for 18 Tabs opened in your Opera GX browser and this is normal.
Please try Melowin Mar's solution in this older thread with a similar problem regarding Antimalware Service Executable. People found this helpful.
https://answers.microsoft.com/en-us/windows/for...
After that, restart your computer using Clean boot of Windows
**Perform a Clean Boot
Determine whether a background program or a software conflict is causing the issue.
Go to the search box > type msconfig
Select System Configuration > go to the Services tab.
Select and put a check mark on "Hide all Microsoft services" > Click Disable all.
Go to Startup tab > Open Task Manager > Disable all the unnecessary services running there. Restart your computer.
Kindly let me know if this helps or if you have any further concerns.
Kind regards,
John DeV
Independent Advisor