Windows 7 64bit with a atheros built in 9285 wireless card, usb Asus awus 036h that I also use for my virtual machines and virtual box with about a dozen different vms that I use often. I had occasional 9f bluescreens driver_power_state or something like that only when trying to shutdown the computer or restart once in a while it would take a while and then blue screen. I debugged the dump and found out it was from the infamous vwififlt.sys driver
which I have had to troubleshoot on Windows 7 boxes in the past 2 years. OK so i renamed vwififlt.sys to .old and have had no problems since I have tuneup utilities keep telling me that this missing driver is causing problems, but I don't see any, anyway I saw a post here by zigzag to uninstall the driver and reinstall, but when you find the hidden vwififlt.sys driver in device manager... there is no option to roll it back or update or anything. How do I go about replacing this driver with a known good one from Microsoft or am I forced to use this same one and rename it back to .sys again, because thats what it looks like is my only option. Any ideas???