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When I tried to reinstall it, it went back to the unknown state, so it just alternates like that. The 'best' thing I got was seeing the yellow exclamation mark in device management for the fingerprint device. I can also go on with the installer as I have the 'ignore' option, but that doesn't solve too much.
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The only folder related to Dell that I can find in Program Files is "DellTPad". It might also be related to the fact that the error shown in the article is different from the one I'm reporting. Well, I checked your link, but I can't seem to be able to find the "Dell" directory under Program Files (or Program Files (x86), which should be of no interest for drivers, anyway, because this is a 64-bit OS), therefore I can't find the log file.
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