even i am facing same problem and u tried also by new 4 gb ram but same problem windows isn't loading but it works in xp ....

Title = a 4-7 short description of the problem. This field is character limited which is why it got cut short.

Subject = a full thought-out description of what the problem is, what you have tried and any specifics (like system specs, software, etc) that are relevant to the problem. Giving this line breaks is also very useful then a half a page single paragraph.
While we understand frustrations, please also do not go into a rant, it just makes it harder for us to extract information out of the rant.