Hard reset Interrupt issue in STM32F103RB

[sne_123]

I am testing EXTI interrupts on STM32F103 board. The device works properly when soft reset is given. Interrupts are triggered properly. But when I give hard rest to the device(Like power off & power on) , it fails to initialize STM32. Maybe it gets an interrupt in the beginning and hangs everything. How can I solve this issue???