While I have several flash drives that work OK on another PC, my desktop (XPsp2) fails to recognise them. It accepts that a 'USB mass storage' device has been plugged in and attempts to find the software. After a few minutes the intallation Wizard return with the message 'The data is invalid'.
Thanks for the prompt reply. The device manager within the control panel (after upgrading XP to SP2) now doesn't show any devices - it only list 'default' - whatever this means. The USB ports work fine with other devices such as DSL modems or USB headsets, it's only flash drives that it doesn't like. When one is plugged in the system recognises the new hardware, starts the Wizard, but then fails with the 'data is invalid' comment. So, it seems to be looking for the appropriate drivers but failing to find them.
I get this sometimes too when I use a USB 1.1 port and insert a USB 2.0 flash drive. And I know they are 'supposed' to be backwards compatible. The problem goes away when I insert the flash drive into a USB 2.0 port. Maybe it is the same with your PC?
Thanks for the thought. I've tried both 1.1 and 2.0 USB flash drives - all exhibit the same error. Before updating to SP2 these devices worked OK most of the time, but were becoming increasingly unreliable - that is the system was failing sometimes to recognise them. Now, however, after the SP2 upgrade nothing works...
Not sure if I have a Via chipset - but your point about updating the motherboard (an Intel SR440bx) could certainly be valid. It's probably 5+ years old and I've never updated the firmware. I've just checked the Intel site and they no longer offer support - is there another site that you know of that can check the state of the motherboard firmware and offer an update?
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