Installed a mobile broadband USB device on my Win8 Samsung 500T. The modem would not initalize when connected so I uninstalled it through Control Panel. After a re-boot none of my USB ports are operational neither is the keyboard/mouse for the machine. HAve tried to reinstall/update USB drivers using the Administrator credentials, no good, I have purchsed Registry and Driver software nothing works. Did a scf /scannow it reported not all files were repaired, I beleive the fault is in the Standard EHC-compliant Host Controller, any ideas welcomed.
Note - I have installed the modem with the same software on XP, Win7 and 2008R2 without a problem.