# DFU-util with Windows - "Cannot open DFU device"

**URL:** <https://community.particle.io/t/dfu-util-with-windows-cannot-open-dfu-device/13321>\
**Category:** Firmware\
**Created:** [July 16, 2015, 1:16am UTC](https://community.particle.io/t/dfu-util-with-windows-cannot-open-dfu-device/13321 "2015-07-16T01:16:00Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![kennethlimcp](https://avatars.discourse-cdn.com/v4/letter/k/c0e974/32.png) [@kennethlimcp](https://community.particle.io/u/kennethlimcp)\
**Post date:** [July 16, 2015, 6:26am UTC](https://community.particle.io/t/dfu-util-with-windows-cannot-open-dfu-device/13321/2 "2015-07-16T06:26:18Z")

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To see the system firmware: [Determining the version of system firmware on a Photon/P1](https://community.particle.io/t/determining-the-version-of-system-firmware-on-a-photon-p1/13324)

I wonder if the DFU driver is incompatible with Windows 8.1?

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_[View the full topic](https://community.particle.io/t/dfu-util-with-windows-cannot-open-dfu-device/13321)._