System restarts constantly after installing window 7 (32bit) on notebook

Hello,
Recently, I installed window 7 (32bit) on my notebook and it worked successfully, but after some months, the system started to restart constantly. So, I made an effort to recover back my past image of window, but I was not successful.
Then I tried to install it once more on the notebook, but it failed again and it gave this error no. 0x80070057. It states that it cannot set up on the partition. Then I used the diskpart method to do it, but failed again.
I need to solve it. Please help me.
Thanks in advance.
