undefinedmy mums laptop running xp home,has 4 USB ports and all was working well untill the other day she went to download photo,s from her cannon camera and it came up with unknown device ,windows does not recognise or device faulty,,when i look at driver ,it says, no driver installed , i then uninstall driver plug camera back in, windows then picks it up, but after it says device installed and working properly it jumps straight back to unknown device again , the same USB ports do work with some other devices but now not camera or memory stick,,they worked before ok,,cannot figure it out,,,windows is not recogniseing its own drivers,,thats what it seems like,,have done file check,,system restore but no luck,,please help,,mum a pain when her puter not work properly THANKS
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