sir
I have windows xp, its speed was very slow so i changed its RAM from 128 512 mb. now when ever i starts it a caption occured on the screen regarding error and asked me to send the message to microsoft, but even then it is not corrected. Secondly when ever i open the internet explorer the same caption occured again after few minutes, and the internet explorer closed it self and it is not possible to open it again until unless it is restarted or some time it restarted it self again and again