Hello MinnieUng,
Thank you for reaching out to the Microsoft Community and I'll be glad to assist you today.
Here in the community, we do not recommend installing any third-party antivirus software, as it may affect system performance and drain power. In your situation, it appears that you have multiple antivirus software installed, and in addition, Windows Security by Microsoft is already pre-installed on the system. This may consume more power and your battery may drain quickly.
Therefore, you will need to disable or completely uninstall one of the software. (or Both). From my personal experience, I recommend disabling Avast rather than McAfee, as McAfee has better features and a more efficient scanner, and may consume fewer memory and system resources compared to Avast. However, this information is solely based on my personal experience. I would never recommend any user to use third-party antivirus software when Windows Security can handle everything and provides advanced system protection.
I hope this information helps. If you have any questions, please let me know and I will be happy to help you further.
Best regards,
Gunasekar N