My computer is not restarting-the power is still on

Hello,
I am having some problem with restarting my computer. Each time I switch on the power the power indicator shows that it is getting power but there is no sign of restarting the PC in this case what are the alternative solution for the problem. I do not know if there is any other problem that could have caused it. Either case someone please help me out of the problem.
Aldrin rechards
