My Compaq Presario started to switch off unexpectedly

My Compaq Presario was working fine then all of a sudden last week,it started to switch off unexpectedly, sometimes when i turn it back on it switches back off after it loads windows.

I think this is heat related problem. The laptop switches off unexpectedly because it overheats. It’s a very common problem with many different laptop brands.

Usually you can fix the problem is you clean the cooling module – cooling fan and heat sink. Most likely the cooling module is clogged with dust.

For cleaning the laptop cooling module I usually use an air compressor. Spray air inside the fan until all dust is gone. This will remove most dust from the cooling module and should cure the problem.

Also, make sure the cooling fan spins when the laptop works. There is a chance that your laptop switches off because the cooling fan has failed.