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    Parallels 7: Unattended File Error

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    During Windows 7 64-bit installation, the error "unattended answer file contains an invalid product key.." appears.

    Here's the fix: http://kb.parallels.com/en/112045. Be sure to disable floppy drive.

    If error persists, start new installation. When prompted to enter product key, click the box to continue without a key.