Runs for a while and then screen starts flashing

You should start windows in safe mode. By pressing the F8 key right when Windows starts, usually right after you hear your computer beep when you reboot it, you will be brought to a menu where you can choose to boot into safe mode. If it does not work on the first try, reboot and try again as you have to be quick when you press it. when it starts in safe mode, run system restore and when prompted for a restore date, choose an older restore date, probably one you a sure was perfect 2 days before the blue screen issue. This should get your system running in good shape.

Try to start the system in safe mode and see if that works if so it is not the screen.
To enter safe mode press F8 during boot up after the bios screen.

OS problem check whether it's update or not.. and activate the OS...

Follow these steps to fix a Blue Screen in Safe Mode

Once booting start, select "Safe Mode" from the boot menu.

Scan your hard drive by running your antivirus software . If the program locates an infection, move it to your vault or follow the on-screen instructions. After program completion, if a virus was removed, attempt to reboot your computer and see if this clears up the problem. If not, restart your computer in safe mode.

Restore your computer to a previous point. Click on the "Start" button. Select "All Programs", "Accessories", "System Tools" and finally "System Restore". Choose a restore point on or before the last day your computer worked without error. Finally Reboot your computer to see if it loads correctly.

Reboot yor machine while holding the F8 key as it boots back up. A menu will apear. Choose -->"start windows in safe mode with networking".
The os will start in safe mode. run an AVG virus scan, then run Defrag by exploring your computer, right click on C: drive, click PROPERTIES, then the TOOLS tab, click the "check now" button, and only checkmark the top box 'fix file system errors', then click ok, the computer will then tell you it will scan upon next reboot., Now click the DEFRAG NOW button. the choose defrag. After Defrag runs for about an hour and it is finished, restart the system. If is still won't run normally, go back into Safemode buy pressing F8 on reboot, then run a registry fixing program such as uniblue registrybooster, then reboot again. If it still won't run right, you may want to reinstall Windows and see if that works. If reinstalling windows doesn't fix it, it is definitely a hardware problem.
Good luck.
PLEASE RATE THIS ADVICE WITH SOME THUMBS UP!!!

first refer to the motherboard's manual and see the max. RAM support.... then go to system properties | advanced tab | start up and recovery | go to settings under system failure....uncheck automatically restart
then when the blue screen appears....note down the error message and error code.... post the message and code to me...
this might ease your problem a little bit....

try to reboot your computer into safe mode.

To use a Safe Boot option, follow these steps:

1. Restart your computer and start pressing the F8 key on your keyboard. On a computer that is configured for booting to multiple operating systems, you can press the F8 key when the Boot Menu appears.
2. Select an option when the Windows Advanced Options menu appears, and then press ENTER.
3. When the Boot menu appears again, and the words "Safe Mode" appear in blue at the bottom, select the installation that you want to start, and then press ENTER.

Then click start
click run
type in msconfig
uncheck everything under the startup tab except your antivirus
and reboot

Hi,
Are you able to enter into the BIOS settings by pressing DEL?
If so, load default settings in the BIOS and try booting up again.

Best wishes,
Graemevm

Run checkdisk
Start >> Run >> cmd >> CHKDSK
Then try Save mode again

It could be a bad backlight bulb.