Windows completely gone?

Question

Can my files on my laptop still be saved and how?

My laptop (HP 650G3) froze, then I closed a program via task manager.
Now it seems like my entire C: drive is empty.
I start up with the message below and blue screen:
There is a problem with the computer and it needs to be restarted. error data is collected then the PC is restarted.
Stop code: critical_service_failed

Then it goes through these black dell screens:
then: prepare automatic recovery>
Diagnose problems on the computer.>

And ends up in a blue screen again with the message:
The PC did not start properly.

What I have already found or tried

1. tried to reset the factory settings via Windows 10 itself, this does not work.
2. Try to select a restore point via windows, it is present but this also does not help.
3. tried via cmdprmpt SFC /scannow, without success
4. boot in safe mode, but this also doesn't work.

When I open notepad in cmd I still see the following disks:

• Windows C
• Recovery image D(empty)
• CD E
• Windows RE tools (it contains a small info file)
• Boot(X)

Does anyone have any advice for me?

Answer 1

For the status of the important computer files please refer to the prior post and indicate a, b, c, or d.

Please perform the following steps:

1) Find 3 flash drives that you can format (> or = 8 GB)

2) Make tools that can be used to recover important files, test the drives, and troubleshoot

3) On a working computer create:

a) a new bootable windows 10 iso 21H1:
https://www.microsoft.com/en-us/software-download/windows10
Download Windows 10 ISO File
https://www.tenforums.com/tutorials/9230-download-windows-10-iso-file.html
Create Bootable USB Flash Drive to Install Windows 10
https://www.tenforums.com/tutorials/2376-create-bootable-usb-flash-drive-install-windows-10-a.html

b) a bootable Ubuntu flash drive:
Create a bootable USB stick on Windows | Ubuntu tutorials
https://tutorials.ubuntu.com/tutorial/tutorial-create-a-usb-stick-on-windows#0
https://www.pcworld.com/article/2147063/linux-to-the-rescue-how-ubuntu-can-help-a-computer-in-distress.html

4) On the Ubuntu flash drive download and install HP diagnostics UEFI version 8.1.0.0:
https://www.hp.com/us-en/campaigns/hpsupportassistant/pc-diags.html

5) On the problematic computer insert the bootable Ubuntu flash drive into the applicable USB port > power on the computer > repetitively click F9 > select the Ubuntu flash drive > select the HP diagnostics UEFI > click extensive > click loop until error > run overnight > the next day if it has made two or more loops click esc > take pictures of the tests performed with results > post images or share links into the thread

6) If there are any drive failure codes then plan to backup important files using Ubuntu.

7) If there are no drive failure codes then plan a custom install (steps will be provided)

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Answer 2

What are the status of the important computer files:
a) files backed up to another drive or the cloud
b) backed up images saved to another drive or the cloud
c) no backed up files or images > files need to be saved
d) no backed up files or images > files do not need to be saved

First test all HP hardware especially the drive.

If the drive passes then perform a custom install (saves files) (drivers and applications need to be reinstalled)

If the drive fails > backup files > clean install windows on a new drive

To perform the above steps find
a) a working computer
b) 3 flash drives (> or = 8 GB) that you can format

Indicate when a and b are available and steps will be provided to create tools to recover important files, test the drives, and troubleshoot.

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.
.
.
.

Please remember to vote and to mark the replies as answers if they help.

On the bottom of each post there is:

Propose as answer = answered the question

On the left side of each post: Vote = a helpful post
.
.
.
.
.

Answer 3

I will try this method. Thanks for your help.

Answer 4

@loteya jackson Did you try this method? Is it working for you or not? I am also stuck in this issue and don't know how to sort out it. Please let me know if you have any solutions. I have to work on my client's website sydney air conditioning Thank You