how to run Process.Start at specific time windows foms c#

Question

hi friends,

 

I installed WPF application setup file in the client system.It is automatically running after system turning on.

 

Now my problem is it is not running initially and I tried with the Task scheduler to run Exe file but the exe file is not running and data is not coming to the database.May be they are stopping  running the exe file.

 

I created one windows form application to open that exe file using Process.Start() it is working in my system and I tried with windows service to run exe file but getting service is not running in Local computer error.

 

I want to install another setup file in the client system to run that exe file to get the data without any fail.

 

At a particular time I want to make it run the already installed exe file through new installation.

 

how to do this ??