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Windows 10 failed upgrade log paths

Last Updated: 5/24/18

good ones appeared to be

C:\Windows\inf\setupapi.setup.log

C:\Windows\inf\setupapi.upgrade.log

 

 

https://support.microsoft.com/en-us/help/928901/log-files-that-are-created-when-you-upgrade-to-a-new-version-of-window

 

The following log files are created when an upgrade is successful:
  • C:\Windows\Panther\Setupact.log
  • C:\Windows\panther\setuperr.log
  • C:\Windows\inf\setupapi.app.log
  • C:\Windows\inf\setupapi.dev.log
  • C:\Windows\panther\PreGatherPnPList.log
  • C:\Windows\panther\PostApplyPnPList.log
  • C:\Windows\panther\miglog.xml
The following log files are created when an upgrade fails during installation before the computer restarts for the second time:
  • C:\$Windows.~BT\Sources\panther\setupact.log
  • C:\$Windows.~BT\Sources\panther\miglog.xml
  • C:\Windows\setupapi.log
  • [Windows 10:] C:\Windows\Logs\MoSetup\BlueBox.log
The following log files are created when an upgrade fails during installation after the computer restarts for the second time:
  • C:\Windows\panther\setupact.log
  • C:\Windows\panther\miglog.xml
  • C:\Windows\inf\setupapi.app.log
  • C:\Windows\inf\setupapi.dev.log
  • C:\Windows\panther\PreGatherPnPList.log
  • C:\Windows\panther\PostApplyPnPList.log
  • C:\Windows\memory.dmp
The following log files are created when an upgrade fails, and then you restore the desktop:
  • C:\$Windows.~BT\Sources\panther\setupact.log
  • C:\$Windows.~BT\Sources\panther\miglog.xml
  • C:\$Windows.~BT\sources\panther\setupapi\setupapi.dev.log
  • C:\$Windows.~BT\sources\panther\setupapi\setupapi.app.log
  • C:\Windows\memory.dmp
The following log files are created when an upgrade fails, and the installation rollback is initiated:
  • C:\$Windows.~BT\Sources\Rollback\setupact.log
  • C:\$Windows.~BT\Sources\Rollback\setupact.err








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