Windows 10 unattended install log file location

Jonathan Gossage 21 Reputation points

I am installing Windows 10 Pro on disk 1 from a USB boot. The unattended install does not happen and I want to look at the log file to see if it tells me anything but I don't know its name nor its location.

Windows 10 Setup
Windows 10 Setup
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Setup: The procedures involved in preparing a software program or application to operate within a computer or mobile device.
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  1. Sean Liming 4,511 Reputation points

    The log file location will depend on the point of when the installed failed:

    • Before the installation starts in WinPE Pass – x:\windows\panther – WinPE only - Use Shift+F10 to open command window and run notepad.exe
    • After installation starts – c:\$Windows.~BT\Sources\panther - Use Shift+F10 to open command window and run notepad.exe
    • After installation is completed – c:\windows\panther

    Log files to review:

    • Setupact.log – master log file for the whole installation process.
    • Setuperr.log – smaller version of Setupact.log, but only includes the errors. This should be the first log to look at.
    • Cbs_unattend.log - this log records the package setup and answer file processing

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  1. Joy Qiao 4,891 Reputation points Microsoft Employee


    We are glad to hear you get desired information from Microsoft Q&A.
    If you have any other issue about Windows, welcome back to Microsoft Q&A.



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