Guest ib_redbeard Posted October 2, 2008 Posted October 2, 2008 Hi all, Here is a summary of what is teh probelm and what I have done so far. When a user plugs in any USB flash drive, the "Found New Hardware" Wizard pops up. If you follow it through, it eventually asks for the USBNTMAP.sys file which is a file associated with USB mass storage on Windows Me. I am definately on a Windows XP SP2 machine. These USB flash drives work perfectly on other Windows XP machines. What I have done: I have downloaded and installed the chipset drivers for the laptop. I have removed all USB devices in the Device manager and then rebooted the laptop. I had to reinstall all the USB devices manually by the way. I ran chkdsk for the heck of it, just so I could have time to think while it looked like I was doing something. What I have found out: I find the USB device that is not working in Device Manager and choose to Upgrade Driver. When I do that, I choose to "install from a list..." and then select to "...choose the driver to install.." When I do this I have two Mass Stroage drivers. The top one is a digitally signed driver from Microsft and the bottom one is a compatiable driver that is not signed. If I choose the MS one the USB device will fail. If I choose the compatible one, the device will work. This is great if you know what you are doing but not so much for a plain user. This has to be done for every new USB Mass Storage device. Once it is done though, it never has to be done again. Both drivers use the USBSTOR.sys file, except the digitally signed MS one asks for the USBNTMAP.sys file and teh compatible one doesn't. Is there anyone to get rid of this digiatally signed driver and make the compatible one the default? Thanks in advance.
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