Yes, antivirus software can cause the 0x80004005 error in Windows 11.

This error is a generic “unspecified” error that can appear during Windows Update, file extraction, or network sharing. Some antivirus programs or third-party security software may:

• Block access to system files needed for updates
• Interfere with Windows Update services
• Prevent certain network or file operations

How to check/fix:

1. Temporarily disable your antivirus and try the operation again.
2. If the error disappears, add Windows Update or the affected folder to the antivirus exceptions.
3. Ensure your antivirus and Windows are both updated to the latest versions.

Disabling or configuring antivirus correctly often resolves 0x80004005 errors caused by software conflicts.