Not a Acer system error message

Hello guys,
I bought an Acer Aspire laptop about a month ago. It had windows XP operating system.
It was running perfectly fine without creating any problems. Now recently I am facing some problems with it. Most of the time it gets stuck.
Then I have to restart it again to continue with my work. I decided to reinstall the windows so I did so.
I added the programs which I needed but when I was installing the programs, an error window started appearing on the screen again and again.
The screenshot of the window is given below:

Acer Empowering Technology
Sorry This is not a Acer system,
OK
I don’t have any idea what this message means and why it pops up again and again.
Has anybody else encountered such a problem? Please help me to resolve this issue.
Looking forward to your replies
Regards
Tony
