P Patrick Moderator, BSOD Kernel Dump Expert, BSOD Academy Instructor Staff member Joined Jun 7, 2012 Posts 4,587 Aug 27, 2012 #1 Hi guys, I was and still am dealing with a user who if he/she now enables verifier, the system freezes rather than BSOD'ing. The first time I instructed to the user to enable verifier, the flagged driver was iusb3xhc.sys which is the Intel(R) USB 3.0 eXtensible Host Controller Driver. The second verifier enabled dump faulted BitDefender. I instructed the user to update the host controller driver from Intel's website, and that was done. After that though, the user now reports that devman says that the Universal Serial Bus (USB) controller as not installed properly. Not quite sure what to tell the user to do next. Is that a chipset driver issue, or a standalone driver issue... what needs to be reinstalled, etc. Thanks.