Safe to Delete

SetupAPI Driver Installation Log (C:\Windows\INF\setupapi.dev.log)

Space: 50 MB – 500 MB logs Windows
Quick Answer: setupapi.dev.log records hardware driver installation steps and PnP device setup diagnostics. Deleting it is safe.

Bottom Line: It is 100% safe to delete setupapi.dev.log. It is a text log used for troubleshooting hardware driver installation failures.

What is setupapi.dev.log?

Located at C:\Windows\INF\setupapi.dev.log (and setupapi.offline.log), this log records details whenever USB devices, graphics drivers, or PCI hardware are installed or initialized by Windows Plug and Play (PnP).

Can You Delete setupapi.dev.log?

✅ Yes, safe to delete.

  • Windows automatically appends or creates a new log file when new hardware devices are plugged in.

How to Delete setupapi.dev.log

Command Prompt (Admin)

del /f /q C:\Windows\INF\setupapi.dev.log

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