Dell inspiron 1525 shutdown problems

Try reinstalling/upgrading Adobe flash player

Scanning computer to eliminate malwares, spywares and the viruses from your laptop.
2- Repairing and cleaning Windows registry.
These two tips are found to be very helpful to fix the laptop shutdown problem. Almost all the computer users surf internet which could result in viruses attacking your system. Some of these infections are really pesky and cause the machines to shutdown randomly.
The registry errors, however, are the internal errors and can become a cause of system crashes and freezes. The registry keys shall be in good health to keep a system perfect.
When I noticed my laptop keeps shutting down everytime, I tested the Intel Software Partner, RegInOut to fix the random shutdown problem with my laptop.

Try performing a recovery after you backup the files on the computer . That should solve the automatic shutdown.

The Laptop is not responding to the Software request sent to the BIOS or one is not getting there.
Best Solution is to make sure all of your Microsoft Updates are performed. Not just the Critical ones... but all that apply. You may see several hardware driver updates.

This will help the Software and Hardware to communicate with each other...

Hold down the ON/OFF button for at least 10 seconds, and it should shut off.

try this.... go to start | run | control
go to power options
on the advanced tab there will be a option called
"when i press the power button on my computer"
select the "shutdown" option
click apply and ok
then try shutdown your machine using the power button

next time your computer starts go to a command prompt and type chkdsk/f it will ask you if you want to run chkdsk next time your computer starts ..say yes..and then restart the /f command repairs damaged sectors..that might help..

Try a differaent screen saver. I had the same problem used a screensaver from the net caused that. used one from windows problem gone. 

i recommend you to buy new one.. for dell 1525 .. must better

The service manual has complete disassembly instructions, this is not easy.

Inspiron 1525 service manual