HP Laptop Black Screen on boot

AndreTen said:

And even getting in the BIOS, display remained blank? I guess screen is dead, then Sometime (with my ancient old HP) it helped (not permanent) to bend the chassis a bit (press on sides - not too much). Just to check any loose connection.

ok thanks for all the help

Power on the computer and open the BIOS UEFI diagnostics.
This may be the F10 key (repetitively click during power on)
The default UEFI diagnostics are drive and memory.
If the UEFI diagnostics were downloaded from the HP website then there are substantially more tests including component tests. If there are available then run the extensive testing or if available the loop until failure testing.
Run this overnight.
The testing is designed to abort if there is problem found and post a code.
If the loop until failure is running the next morning then this is typically a good sign as one or more loops should have completed. Then press the escape key to abort the testing.

There are different versions of the HP UEFI diagnostics.
Open the website for HP and click on support and drivers > enter the product or serial number or model > select the operating system > view drivers > post a URL or hyperlink into the thread
The HP UEFI diagnostics can be installed on a flash drive and used for testing:
HP PC Hardware Diagnostics | HP® Official Site






Find a flash drive that you can format ( > or = 8 GB)
Create a bootable windows 10 iso:
Download Windows 10
Download Windows 10

Insert the windows 10 iso flash drive into any USB port
Power on the computer and boot to the widnows 10 iso clicking the applicable keyboard key.
List of PC brands with their corresponding hot-keys
List of PC brands with their corresponding hot-keys
Alternatively, temporarily modify the BIOS boot order so that the external USB HD is on top.
It may take 5 - 10 minutes for the iso to load while viewing the Microsoft Windows icon
Select language, time, currency, and keyboard, or click next
In the left lower corner click repair your computer (do not click install as this is the method of clean install)

In the windows 10 troubleshooting menu on the iso start with startup repair.
It may fail and display that it created a srttrail.txt file
See if you can save this file to a flash drive and then transfer the flash drive to a working computer to upload into the thread.

Next click system restore. Start with the oldest system restore point and keep repeating as necessary until there are no more system restore points. If there are no system restore points or if system restore fails advance to the next step.

Click command prompt
This should open a black box with title bar: Administrator: X:\windows\system32\cmd.exe and prompt: X:\Sources>

Find a camera or smart phone camera to take pictures of commands and results. Then post images into the thread.

These are commands to type. For comments they will be in parenthesis.

1) bcdedit /enum
2) bcdedit | find "osdevice"
3) c:
4) dir
5) d:
6) dir
7) e:
8) dir
9) x:
10) diskpart
11) list disk
12) list volume
13) select disk 0
14) detail disk
15) list partition
16) select partition 1
17) detail partition
18) select partition 2
19) detail partition
20) select partition 3
21) detail partition
22) select partition 4
23) detail partition
24) (if there are any additional partitions then continue in the same fashion)
25) select disk 1
26) detail disk
27) list partition
28) exit
29) bootrec /fixmbr
30) bootrec /fixboot
31) bootrec /scanos
32) bootrec /rebuildbcd
33) (reboot and check boot) (if boot fails then reopen command prompt and advanced to next steps)
34) chkdsk /r P: (change the letter P to the drive letter displayed in step #2 for the partition)
(this may take many hours and typically displays ETA)
(reboot as necessary to run the chkdsk command)

There are additional commands that depend upon the commands and results.
Please make sure to post images into the thread for additional troubleshooting steps.

i ran the bios boot again and the fan sounded and spun for awhile but the screen remained blank after a couple minutes it rebooted it self over and over....

zbook said:

Power on the computer and open the BIOS UEFI diagnostics.
This may be the F10 key (repetitively click during power on)
The default UEFI diagnostics are drive and memory.
If the UEFI diagnostics were downloaded from the HP website then there are substantially more tests including component tests. If there are available then run the extensive testing or if available the loop until failure testing.
Run this overnight.
The testing is designed to abort if there is problem found and post a code.
If the loop until failure is running the next morning then this is typically a good sign as one or more loops should have completed. Then press the escape key to abort the testing.

There are different versions of the HP UEFI diagnostics.
Open the website for HP and click on support and drivers > enter the product or serial number or model > select the operating system > view drivers > post a URL or hyperlink into the thread
The HP UEFI diagnostics can be installed on a flash drive and used for testing:
HP PC Hardware Diagnostics | HP® Official Site






Find a flash drive that you can format ( > or = 8 GB)
Create a bootable windows 10 iso:
Download Windows 10
Download Windows 10

Insert the windows 10 iso flash drive into any USB port
Power on the computer and boot to the widnows 10 iso clicking the applicable keyboard key.
List of PC brands with their corresponding hot-keys
List of PC brands with their corresponding hot-keys
Alternatively, temporarily modify the BIOS boot order so that the external USB HD is on top.
It may take 5 - 10 minutes for the iso to load while viewing the Microsoft Windows icon
Select language, time, currency, and keyboard, or click next
In the left lower corner click repair your computer (do not click install as this is the method of clean install)

In the windows 10 troubleshooting menu on the iso start with startup repair.
It may fail and display that it created a srttrail.txt file
See if you can save this file to a flash drive and then transfer the flash drive to a working computer to upload into the thread.

Next click system restore. Start with the oldest system restore point and keep repeating as necessary until there are no more system restore points. If there are no system restore points or if system restore fails advance to the next step.

Click command prompt
This should open a black box with title bar: Administrator: X:\windows\system32\cmd.exe and prompt: X:\Sources>

Find a camera or smart phone camera to take pictures of commands and results. Then post images into the thread.

These are commands to type. For comments they will be in parenthesis.

1) bcdedit /enum
2) bcdedit | find "osdevice"
3) c:
4) dir
5) d:
6) dir
7) e:
8) dir
9) x:
10) diskpart
11) list disk
12) list volume
13) select disk 0
14) detail disk
15) list partition
16) select partition 1
17) detail partition
18) select partition 2
19) detail partition
20) select partition 3
21) detail partition
22) select partition 4
23) detail partition
24) (if there are any additional partitions then continue in the same fashion)
25) select disk 1
26) detail disk
27) list partition
28) exit
29) bootrec /fixmbr
30) bootrec /fixboot
31) bootrec /scanos
32) bootrec /rebuildbcd
33) (reboot and check boot) (if boot fails then reopen command prompt and advanced to next steps)
34) chkdsk /r P: (change the letter P to the drive letter displayed in step #2 for the partition)
(this may take many hours and typically displays ETA)
(reboot as necessary to run the chkdsk command)

There are additional commands that depend upon the commands and results.
Please make sure to post images into the thread for additional troubleshooting steps.

i tried booting with a win 10 disc and the HP usb but still nothing....esc, f2, 10, 11 does nothing on boot

zbook said:

The "My Computer" section displays DELL.
Multiple computers can be added.

Update the specs in the "My Computer" section:

System Specs - Fill in at Ten Forums | Windows 10 Tutorials
In the left corner below in your post you find 'My System Specs'.
After clicking it you can find a link a little below that says 'Update your System Spec', click on this link to get to the page where you can fill in your system specs.
System Info - See Your System Specs - Windows 7 Help Forums

Include PSU. cooler, case, peripherals and anything attached to the computer by wired or wireless (mouse, keyboard, headset, printer, xbox, USB wireless network card, etc.)




Check the POST:
What is POST?
Computer POST and beep codes
POST troubleshooting steps



1) For the HP USB see if you can temporarily modify the BIOS boot order so that the USB HD is on top.
2) For boot troubleshooting:

Boot from USB Drive on Windows 10 PC Windows 10 Installation Upgrade Tutorials: Boot from USB Drive on Windows 10 PC | Windows 10 Tutorials

Note
If you have fast boot or ultra fast boot enabled in your UEFI firmware settings, then you will need to temporarily disable fast boot or ultra fast boot to be able to boot from a USB.
How to Enable Fast Boot or Ultra Fast Boot in UEFI Firmware Settings for Windows: Enable or Disable Fast Boot in UEFI Firmware Settings for Windows | Windows 10 Tutorials

3. Try another USB stick
4. Try all USB ports (2.0 and 3.0)
5. Maybe when using UEFI Bios you have to temporarily switch to Legacy in BIOS settings
6. Turn off temporarily fast boot, secure boot, CSM if enabled

These are some other methods to check the boot:
7) Run Memtest86+ version 5.01
Memtest86+ - Advanced Memory Diagnostic Tool
8) Run Ubuntu/Linux
Create a bootable USB stick on Ubuntu | Ubuntu tutorials

i've tried all new memory and hard drive. i can't choose boot device or order as no words come up on boot up nor do any buttons do anything.....

AndreTen said:

If you really managed to get into BIOS (as you said..) and screen was blank, possibilities are high, that display failed (or graphic part of CPU, but that would trigger a failure in system boot).

There are two things to try:
1. go into BIOS again with external monitor (you have HDMI also- try that), and
2. prepare USB stick with BIOS auto update - so any BIOS problematic configuration would be cleared.

no i haven't gotten into bios....only a blank screen on strat up no matter what i try..never any words or menus of any kind

Run the HP UEFI diagnostics using a USB flash drive:

HP PC Hardware Diagnostics | HP® Official Site

Did you ever fix this problem 😥😥. I have the exact same issue and I've tried everything mentioned multiple times over