Windows Vista unknown exception occurred at 0×773c3f63

Hello guys
I have recently been trying to install windows vista on my PC, but I am getting an unexpected error on my screen.
The screenshot of the error is attached below:

The error is:
The exception unknown software (0×000100) occurred
In the application at location 0×773c3f63.
Can anyone please tell me why am I getting this error and I am not able to install the windows. I have tried hard but now I am at my wits end.
Your help is required in this regard. Please let me know if anyone has any idea about this error.
Waiting for your reply
Kindest regards
Ammelia
