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Home / security-tools / Renew Expired Token via PowerShell: Step-by-Step - Windows Defender Access Denied Error: Windows 11 Fix Guide-Fix 'Could not get lock /var/lib/dpkg/lock' Error on Ubuntu/Debian

Renew Expired Token via PowerShell: Step-by-Step - Windows Defender Access Denied Error: Windows 11 Fix Guide-Fix 'Could not get lock /var/lib/dpkg/lock' Error on Ubuntu/Debian

Updated 2026-06-13 18:35:11security-tools
Renew Expired Token via PowerShell: Step-by-Step - Windows Defender Access Denied Error: Windows 11 Fix Guide-Fix 'Could not get lock /var/lib/dpkg/lock' Error on Ubuntu/Debian
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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