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Why is it that when using Windows Vista or Windows 7 and I eject my USB device safely it’s still powered?

When using a flash drive I can still see the light, and when I use my Western Digital Passport, that is USB powered, I can still feel the hard disk drive spinning. Yet, when I use Windows XP this is not an issue.

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up vote 0 down vote accepted

That is because it keeps power supplied but safely removes the catch of the computer. This is not a problem at all. After removing the drive safely (by right clicking), you can pull out the drive at any time and it won't get corrupt.

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