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4 January 2021  Amanda J. Brook  Senior Product Manager
 

Summary
Laptop does a greate help for users who need to takeout the computer for work and study. However, we may encounter laptop black screen when using it. What is the possible reasons and related solutions? Figure out the real reasons with guidance here step by step.



notebook black screen

Catalog

Situation 1: Laptop Black Screen without Lights On
Situation 2: Laptop Black Screen with Long Beep Sound
Situation 3: Laptop Black Screen with Working Fan and Battery
Situation 4: Laptop Black Screen with Cursor

Situation 1: Laptop Black Screen without Lights On

Possible Reasons and Related Solutions:

Something Wrong with the Battery

Please remove the battery from laptop at first. Then disconnect any other uncessary external devices. Restart the laptop after 60 seconds. (If black screen happens frequently, please try to solve this problem by removing the battery.)

remove notebook battery

The Problem of the Laptop Power Adapter

Check the connection between the power cord and the power adapter. If the connnetion is loose or does not work, please reconnect it. If the problem can not be solved, the power adapter could be damaged and we need to get a new one.

replace power adapater

Situation 2: Laptop Black Screen with Long Beep Sound

Possible Reasons and Related Solutions

Hardware of the Laptop

Sometimes, the poor connection or damaged of the RAM could also lead to black screen. Please take off the RAM from the laptop and clean the connectors with eraser. Then pelase reseat the RAM stick. If it does not work, please replace the RAM. However, if replacing a new RAM stick still does not work, it is recommended to sent the laptop to professional for repair.

remove ram

Situation 3: Laptop Black Screen with Working Fan and Battery

Possible Reasons and Related Solutions:

The Problem of the CPU

Laptop starts up and get black screen could be caused by the damaged or poor connected CPU. Under this circustance, it is recommended to send the computer to professional for repair.

Tips：
if you are not familiar with the installation of computer hardware, please send the laptop to professionals.
change cpu chip

Situation 4: Laptops Black Screen with Cursor

Possible Reasons and Related Solutions:

External Devcies are Connected

If your laptop is set to boot from external devices like USB disk, then any other connected external devices could also lead to computer boot failure and black screen. Please check whether you have connected any other uncessary external devices liek SD card, USB disk.

remove external usb device

Damaged or Corrupted MBR/DBR in Hard Disk

Error Boot Code

Laptop will get access to the boot code from MBR/DBR when starts up. If the boot code gets damaged or corrupted, laptop will fail to boot and get black screen with cursor on the top-left corner.

black screen with cursor
Create Windows 10 installation media and run Windows RE after booting from the media. It is recommended to create the bootable media with USB disk. Besides, we can also fix the MBR with tools in third party software like “Renee Passnow”. (Please refer to Reasons and Solution for Windows 10 Boots to Black Screen for detailed steps.)
Step 1: Download and install Windows 10 Media Creation Tool from the following link in another workable PC:
https://www.microsoft.com/en-gb/software-download/windows10
Step 2: Launch the software and choose “Create installation media for another PC”.
windows 10 media create for another computer
Step 3: Connect the Windows 10 installation USB disk to target laptop and set the computer to boot from the USB disk in BIOS.
change boot order in BIOS menu
Step 4: Click “Repair your computer” on “Windows Set Up” interface. Please click in order: “Troubleshoot” – “Prompt Command”. Enter the following commands one after the other: fobootrec/fixmbr, bootrec/fixboot, bootrec/rebuildbcd.
BOOTREC FIXBOOT

2. Damaged Partitions

Step 1: Download Gparted from the following link: https://sourceforge.net/projects/gparted/. Then write the downloaded iso file to USB with UNetbootin
connect usb to laptop
Step 2: After booting from the CD/USB with Gparted inside, we can get the information of the partitions.
Gparted
Gparted2

If the paritions are abnormal, it is recommended to recover important data from the partitions with data recovery tool in Renee Passnow before we lost all data. Here are the detailed steps:

Step 1: Download and install Renee Passnow on any other workable computer. 

The Windows computer you installed Renee Passnow need to be able to login and work normally (The Windows version of the computer you are using to create the new password reset disk does not matter.).
press to the download button

Step 2: Launch Renee Passnow. Create bootable media with USB/CD/DVD. 

Select one option from [Crate a Live USB] and [Create a Live CD]. Then, select [x64] or [x86] according to your computer. Next, click on [Download Now] to download the licensed ISO. Remember to activate the software beforehand. After that, click on [Create USB] to create the boot media.
use renee passnow to create usb to reset passnword

Step 3: Boot the target computer with the created bootable media.

Please hold a Hot key to enter the BIOS menu.Please click here to find how to change the boot order of your computer brand. Please make the create bootable media to be the first in the boot order. (Can not find your brand? Please refer to your PC manual to find out the method.)
change boot order in BIOS menu

Step 4: After loading into the main interface of Renee Passnow, please select “Undeleter” function.

data recovery function in Renee Passnow

Step 5: Select suitable scan mode and start to scan. You can preview the files while scan process. 

show undeleter functions through passnow