my computor model is Hp Pavilion dv4-1308CA,I bought from my friend last year.
now,the problem with me is,i turn on it,windows in not starting at once,1 or 2,3 hour more long after,
starting windows.after using shut down or hybernate.
another time i turn it on, that is the same again.
idon't know how to fix it.
os version to upgrate windows 7 ultimate,and computor ask me to replace battery also.
so i replace and using power supply 220 volt.
please reply me..i really appreciate.