hy
i have been using my laptop for 4 years. It works fine but few days ago the following problems arises.

1- Laptop is heated up very quickly just after 10 minutes of powering up.
2- when it is heated up, it becomes very very slow.
3- and Finally most importantly, a blue screen comes " Kernal Data Input Error" comes on regular basis.


please guide me what to do woth my laptop.
Thanks