My system is lenovo 1gb ram, 160gb hard disk. when i am trying to open control panel i am not finding the control panel
If you are not finding the control panel after clicking on Start button on the bottom left hand side then you can try this: Start button>run>type or paste explorer.exe
Expand my computer,do you see the control panel there?
If not then you can even try in safe mode as well.
Was it is a new system or older one and if older from when its going trouble
did you change any settings