Black screen of my hp laptop

[Muskan24]

Hi!

Few days ago I was made to update the laptop. But due to battery low it shut down abruptly and started undoing changes. At that time the laptop worked fine. Yesterday when I shut down the laptop, since then when I power on the button sometimes blinks and the screen is completely black. For once the hp logo was visible but the screen has some small horizontal lines and it got stuck I again turn off the pc and the screen is black again but the power button is on. What should I do please help. I have my coding data and all stuff, I hope there won't be any case that I'll loose it. Please help.

Thank you

[WAWood]

@Muskan24 

Anything you do to try to force the laptop to start up risks erasing these critical files -- which you apparently found so unimportant that you didn't both to back them up to a USB stick in case something like this happened.

So, at this point, you should focus on recovering those files and saving them to a USB stick.

All you will be able to recover at best from the drive is personal data. You will not be able to recover settings, website information (including user accounts and passwords) or applications.

Your best bet for recovering data now is to do the following:
1) Remove the disk drive from the old PC. If this is a SATA hard drive or a SATA SSD, this is a simple thing to do. If this is an m.2 SSD, that could be either screwed to the motherboard or soldered to the motherboard. If the second, you would need to have a techician remove it for you, or you risk seriously damaging the PC doing it yourself.
2) If you have a desktop PC with a spare hard drive connector, then connect the old drive to that. If the old drive is a SATA drive, connect both the power cable and the data cable. (This adapter is illustrated below) If the old drive is an m.2 SSD, you will need a USB-to-mSATA cable.

3) Try to retrieve the files and folders you want to save from the old drive and copy them to the new PC.

If this does not work, then you need to do the following:
1) Download and install this utility on a working PC http://www.majorgeeks.com/news/story/recover_data_in_3_steps_with_minitool_power_data_recovery_free_...
2) Run the data recovery utility to see what can be retrieved from the old drive.

If that tool does not find what you need, an alternative is Recuva http://www.piriform.com/recuva

And, if that does not work well, the best tool out there is this one, but only the demo version is free https://www.runtime.org/data-recovery-software.htm