After having removed a usb-stick before it was finished, my usb 2.0 ports run at 1.1 speed. The mobo has no usb 1.1 ports, only 2.0 and 3.0. I can reinstall intel chipset drivers (ich10), and the ports run at 2.0 again. BUT: After boot, its back at 1.1 again. Device manager under usb shows: 2 entries with "Intel ich10 family usb enhanced host controller" 6 entries with "Intel ich10 family usb universal host controller" 1 entry with "Renesas Electronics usb 3.0 host controller" 1 entry with "Renesas usb 3.0 Root hub" 8 entries with "usb root hub" Have tried everything under the sun, have given up. (Tried "DriveCleanup V1.2.0" - removes non present drives from the device tree Freeware by Uwe Sieber (c) 2007-2016). Drivers used are Intel chipset (inf update) from gigabyte download for this mobo. opsys xp sp3 32 bit, mobo Ga-x58a-ud7. Booting a win 7 hdd on same pc, and no problems with usb at all ! Any fix apart from clean install ?