Error when completing installation

[iNeuron]

Hi! I've been trying to install win7 for like 3-4 times now and every time I get to the Completing Installation part I wait a little and suddenly I get a red error box and it says something about "Windows cannot be installed..." and then pc shuts down. The error box is there for like 0.5 seconds so I cant read it, but its just like 1 sentence. "Cannot be installed" and something after that. What do I do ?

 

[theog]

Did you Check with the Upgrade Advisor:

Download details: Windows 7 Upgrade Advisor


Can you post your specs.
http://www.sevenforums.com/general-discussion/22550-filling-out-system-specs.html

 

[iNeuron]

It says "Windows 7 upgrade advisor was unable to reach Microsoft server for compatibility information. Check your internet connection and try again"

But my internet is connected and never lost connection