I have hp pavilion 360 which had a Data(D) drive now suddenly missing

[I_am_barbie]

I have HP Pavilion 360 and it came with 3 drives one was Windows C another was Recovery E and another was the Data D drive I was transfering my pictures and storing them in the D drive as it had almost 1 tb space. While the data was being copied suddenly the laptop started to restart and when it finally did restart both the Recovery E and the Data D drives are missing. I can't find them anywhere on the computer or disk management or the device manager. The D drive had many of my personal data as well and many important files too so it's an emergency to restore that drive again. But I'm unable to locate it anywhere, kindly please give me some solution it's an emergency for me to restore that drive. 

[WAWood]

@I_am_barbie 

OK, so first of all, you are NOT going to be able to RESTORE the drive that now has the missing partitions.  You have to RECOVER the information from the corrupted drive and write that to a different drive.

Second, 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