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Fix Windows Defender Slow Startup in Windows 10 - Microsoft Teams Gateway Timeout Fix Guide-How to Resolve 0x80070002 and High CPU Usage

Updated 2026-06-14 18:07:04browser-issues
Fix Windows Defender Slow Startup in Windows 10 - Microsoft Teams Gateway Timeout Fix Guide-How to Resolve 0x80070002 and High CPU Usage
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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