To clean up a failed or previous LINA install on a system running Windows, do the following:
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If the previous installation was successful, use the Control Panel Add/Remove program to delete LINA Runtime Environment and any installed LINA Apps.
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In the event of a failed install, clean up the registry by typing "regedit" at the command prompt, then remove the LINA registry entries under "SOFTWARE" in the HKEY_LOCAL_MACHINE and HKEY_CURRENT_USER entries
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Stop the process linawindowsservice using the process manager that can be accessed by holding down the "CTRL-ALT-DELETE" keys.
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Remove the directory "C:\Program Files\Lina Software".
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Remove the subdirectory ".VirtualBox" under the user's home directory.