I accidently deleted the fingerprint program on my laptop. how do i go about reinstalling it?

Hi there are 3 ways of sorting your problem out first if your on vista and runnig the the same program from when you had it new you will find a second hard drive set up for you first starting the pc up what you must do is restart the pc returning the pc to first settings when you got the pc new this will most likely put you pc back to normal.
2 if this dont help try going in to start then all programs then accessories then sys tools then sys restore enter this and restore your pc to the nearest date before you lost your program.
3 if you have the sys drivers disk put this in and try restoring your program from that .
its up to you what you try first i would try the last 2 first
make sure that you save on an external hard drive all your files that you need because there may a chance of lossing your files in some of these ways ok
hope it works out for you all the best