I'd be curious too. A lot of people who use USB keyboards and mice have this issue. Wna1000m Driver Windows 10 more. I go around it by using a PS-2 Keyboard to get into windows, and then windows loads the USB drivers. Synaptics Wbdi Driver Windows 10. It's quite possible you were able to log in and Windows automatically downloaded the drivers. Many new systems don't have a PS-2 port, but they are included for problems just like this on most new machines, they usually have one PS-2 port that can be used for KB or Mouse in case Windows does not have a native driver on hand for the USB devices. Computer Type: PC/Desktop System Manufacturer/Model Number: Asus OS: Windows 10 Pro/Windows 7 Ultimate CPU: AMD 4400+ Motherboard: Asus M2N-SE Memory: 4 GB DDR2 Graphics Card: GeForce 8400 GS Monitor(s) Displays: Hitachi 40' HDTV Screen Resolution: 1920x1080 Mouse: MS Intellimouse IR Case: MSI M-Box Cooling: Water Filled Cooler Hard Drives: Drive Hitachi HDS721010KLA (931 GB) ST1000DM003-9YN162 (931 GB) WD My Book 1140 (1862 GB) WDC WD10EARS-00Y5B1 (931 GB) Internet Speed: 60mbps/7mbps Browser: Firefox Antivirus: Eset NOD32 v6 through 8 Other Info: Dual-Boot Windows 7/10 Legacy Boot.