DAEMON Tools 4.08HE software error

Hi friends,
Yesterday I tried to install Daemon tools 4.08HE but my system won't let me install it as it gave me the following error message on my screen.
The screenshot of the error is attached below:

DAEMON Tools 4.08HE (32 bit)
You must reboot after previous operation.
OK
Can anyone please explain what does this error mean and what should I do to resolve it?
Any ideas will be highly appreciated.
Thanks in advance.
jones
