Whenever i turn the laptop on, in just 2 seconds it turns off by itself.

Reseat Ram and HardDrive
Disconnect any externals especially USB
Test without the battery plugged in
Check for any build up of dust near where the fan is

I dont have external hard drive and there isnt any build up dust as
i checked so all i have to do is reset RAM? Hmmm, i don't think
i even know how to reset the RAM, could you give me an idea please?
I'm so sorry for being dumb on computer.

Thanks,
Joy

No problems Joy

Actually your Toshiba manual may be best to download anyway, because you really need to follow all safety precautions
(ie Power and battery out; and adhere to all anti-static warnings)

But usually it's quite simple
Remove all power
Turn the laptop over
Locate the Ram plastic cover
It will probably have one screw to remove (some have clips)
Remove the screw and cover
Hopefully you see the Ram cards
Unclip them on the side of the Ram (gently)
Then pull them out
Blow out all dust
Squeeze them back in, and then seat them down, until they click in
Put the covers back on

By the way, I was talking about the internal Harddrive, which is pretty much the same principle as the Ram (different cover though)

More info here: Tutorial: No POST (Power On System Test)

I thank you again for the tutorial thread...i will do that this weekend my day off.
Like what the weather will be, i'd prefer to stay home and work on this,lol.