High DPCs/IRPs - USBPORT.SYS - XPERF trace included - please help

[the]

Hello! I've tried changing and reinstalling drivers for Wi-Fi adapters, tried different Wi-Fi adapters, tried deleting all NVIDIA drivers (because USBPORT.SYS, DirectX Graphics Kernel, and NVIDIA Windows Kernel Mode Driver are top at Total Execution in LatencyMon)
OS: 8.1 64bit
Here is my XPERF trace: https://www.dropbox.com/s/tlfvzdcuc6xjge5/XPERF_trace.rar?dl=0
Please help!

 

[TomasD]

Hello,

The issue seems to be caused by the Ralink USB WiFi adapter you have. Installing the latest driver should solve the issue. If the issue, as you mentioned, persists with different adapter/driver, please generate a new trace.