I don’t know if it helps or not but I recently had a similar issue on a Win7 Pro machine where all my USB devices just disappeared including my mouse and keyboard. This was not with a Hack-RF since I have a dedicated Linux box for that work but it was similar. It originally presented after a reboot following updates from MSFT. I initially blamed some recently installed software for a USB device but ultimately it turned out to be an Intel driver that needed to be re-installed after the update package. It was the Intel USB 3.0 extensible host controller ver 5.0.4.43 that fixed my issue. Good luck.
From: HackRF-dev [mailto:hackrf-dev-boun...@greatscottgadgets.com] On Behalf Of Chris Meta Sent: Monday, May 28, 2018 2:14 PM To: hackrf-dev@greatscottgadgets.com Subject: [Hackrf-dev] Windows Woes Hi all.. My name is Chris, and I come before you with a baffling problem. My HackRF One (and my NooElec Nano2+) quit working under Windows 7. They still work (to the extent I've learned to utilize them at this point) on 2 different Linux machines. The HackRF has the 2017.02.1 firmware on it, which I upped it to sometime early this year. These WERE working Windows. I don't know exactly when or what happened, but at some point *both* devices - at the same time - just quit being recognized by software. GnuRadio/GRC, Sdr.Comv2/v3, HDSdr, all of it. Neither the HRF-O nor the Nano2+, in any USB port, in any application, work. At some point, hackrf_info went from saying no HackRF was present to throwing a dialog "The procedure entry point libusb_strerror could not be loicated in the dynamic link library libusb-1.0.dll." (I believe that is part of the driver from Zadig, no?) Nothing shows up in the Windows Event Viewer logs when this happens, so I'm buggered for where to look next. I actually was at that point approximately the moment I discovered that the devices weren't being recognized by the software, but I do TRY to clean up my own messes, Read That Fine (if often incomprehensible) Manual, recheck my work, try to remember what mistakes I might have made, cross-check with other hardware and software, "Ask Dr. Google" etc, but I think I've got those bases well-covered five times over and I'm at wit's (and patience's) end I I just want the friggin' thing to work so I can get back to my radio hobby. I got tired of my computer hobby when this problem beat me. Anyone got any ideas? I'd be grateful...
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