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3 April 2024  Amanda J. Brook  Senior Product Manager
 

Summary
If you're facing the KMODE_EXCEPTION_NOT_HANDLED error on your Windows system, this guide offers a range of solutions to help you tackle the issue. Ensure you safeguard your data by following the backup strategies outlined here, especially if you're experiencing difficulties starting Windows.



Table of contents

table iconI. Why does the KMODE_EXCEPTION_NOT_HANDLED prompt appear?
table iconII. How to solve the blue screen code KMODE_EXCEPTION_NOT_HANDLED?
table iconIII. When Windows fails to start, use Renee PassNow to transfer or recover data
KMODE EXCEPTION NOT HANDLED

I. Why does the KMODE_EXCEPTION_NOT_HANDLED

Software crashes and computer blue screens with the "KMODE_EXCEPTION_NOT_HANDLED" error often occur when applications overwrite each other’s memory. This can result from access violations, incompatible hardware, system service, device driver failures, or invalid memory, potentially leading to complete system failure.
KMODE EXCEPTION NOT HANDLED error prompt
Now that we understand the cause of the “KMODE_EXCEPTION_NOT_HANDLED” error, let’s move on to the solution to the problem.

II. How to solve the blue screen code KMODE_EXCEPTION_NOT_HANDLED?

1. Disable Fast Startup

Enabling Fast Startup reduces boot times but can increase shutdown durations as the system saves necessary files to the hard drive. It may also interfere with certain programs. Disabling Fast Startup can help determine if it is the source of these issues.
Step 1: If you encounter the “KMODE_EXCEPTION_NOT_HANDLED” blue screen error, restart your computer. After a successful reboot, press Windows+R, type “control panel“, and click “OK” to open the Control Panel.
type control panel
Step 2: After opening the Control Panel, select View as (Large Icons), and click (Power Options).
Windows power options
Step 3: Click (Choose what the power buttons do).
Click Choose what the power buttons do
Step 4: Click (Change settings that are currently unavailable).
Click to change settings that are currently unavailable
Step 5: Uncheck (Enable Fast Startup), and click (Save Changes). After completing the steps above, check to see if the problem is resolved.
Uncheck Enable fast startup

2. Update faulty or outdated drivers

An outdated or malfunctioning driver can lead to computer issues. If a KMODE_EXCEPTION_NOT_HANDLED error occurs, the problematic driver’s name will be displayed within the error message. To resolve this, identify the driver’s name and proceed to update it with the following steps:
Step 1: Press the (Windows+X) key, and Select (device manager) .
right click at start menu and select device manager
Step 1: Press the (Windows+S) key, and enter (device manager) or (device manager) in the search box, and click (device manager) in the search results.
Step 2: Find the hardware related to the driver error, right click on the hardware and select (Update Driver).
right-click the device with an outdated or faulty driver (usually a faulty device will have a yellow exclamation mark icon)
Step 3: Select (Automatically search for drivers) and wait for the update to complete. If the automatic driver search doesn’t work, you may choose to visit the manufacturer’s website and search for the appropriate driver yourself.

3. Uninstall the problematic software or hardware

If the error is caused by software or hardware that was recently installed on the computer device, then you need to remove the software or unplug the corresponding hardware. You can uninstall recently installed programs by following these steps:
Step 1: Press the (Windows+R) key to open the run window. Type (control panel) in the command box and click (OK).
type control panel
Step 2: Click View by, select (Category), and then click (Uninstall a program).
Step 3: Right-click the program you want to uninstall, and click the (Uninstall) button. After uninstalling the program, restart the computer to see if the problem is resolved.
Windows 10 uninstall apps

4. Use the SFC command to fix the problem

To resolve issues such as the KMODE_EXCEPTION_NOT_HANDLED error, utilize the Windows System File Checker (SFC). This tool verifies the integrity of all protected system files on your PC. Perform the following steps to use SFC:

Step 1: Enter (cmd) in the search box, right-click the search result, and select (Run as administrator) to open the command prompt window.
Step 2: For Windows 10, 8.1, or 8 users, execute DISM.exe /Online /Cleanup-image /Restorehealth before the SFC scan. Afterward, input sfc /scannow and hit Enter. If you encounter “Windows Resource Protection cannot perform the requested operation” post-SFC scan, click here for further information.
Enter the command sfc /scannow
Step 3: The process will take some time, wait for it to complete. Restart the computer after the process is complete to see if the problem is resolved.

5. Run the Windows Memory Diagnostic Tool

The Windows Memory Diagnostic Tool can help you check for any issues with your RAM. If you are able to start your computer, follow the steps below.
Step 1: Press the (Windows+R) keys simultaneously to open the Run window, then type (mdsched.exe) and click (OK) to open the Windows Memory Diagnostic Tool.
mdshed
Step 2: Select the “Restart now and check for problems (recommended)” option in the Windows Memory Diagnostic tool. Permit the diagnostic to complete its run, then reboot your computer to verify if the blue screen issue has been resolved.
Windows memory diagnostic i
To effectively address the “KMODE_EXCEPTION_NOT_HANDLED” blue screen error and safeguard against data loss when the system is unreachable, consult Part 3 for strategies to transfer or recover data without initiating a Windows boot sequence.

III. When Windows fails to start, use Renee PassNow to transfer or recover data

1. What is Renee PassNow?

Renee PassNow is a versatile system rescue software designed for Windows users. It enables users to reset Windows account passwords, create new admin accounts, recover data from disks or memory cards, even after formatting, and transfer files between disks. Additionally, it can wipe or scan disk files. The software is also equipped to repair common Windows system issues such as MBR boot record errors, DBR error parameters, 0xc00000e errors, startup failures, and problems leading to black or blue screens. Compatible with Windows 10/8.1/8/7/XP/Vista, Renee PassNow caters to a variety of system rescue requirements.
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2. How to use Renee PassNow to transfer or recover data?

If Windows fails to start, create a startup disk using Renee PassNow. Boot the computer from this disk and utilize the software’s features to transfer or restore files. Follow the provided instructions for these steps.
Step 1: Install Renee PassNow on a functioning computer with login access. Connect a USB drive to this PC, launch Renee PassNow, and select “Create a rescue USB disk” in “Step 1: Choose the creation method.” (Important: Ensure you back up any vital files on the USB drive to another location, as this process will erase all data on the drive.)
Step 2: Next, select (x64) or (x86) according to the system type, click the (Download Now) button to download the ISO file, click the (Create USB) button after the file is downloaded, and click the (Eject USB) button.
use renee passnow to create usb to reset passnword
Step 3: Plug the boot device into the target computer, power it on, and immediately press the BIOS access key shown on-screen (note: the prompt may last only 1-2 seconds). In the BIOS menu, navigate to Boot Priority and set the USB drive as the primary boot option. Save changes and reboot the computer.
select boot order
Step 4: Wait for a while, after Renee PassNow is loaded, select (Data Transfer). If you need to transfer or backup the data of the entire hard disk, you can select the (data backup) option.
data transfer
Step 5: Click on each disk drive letter (C/D/E/F, etc.) to verify if any important files are missing. If files are intact, it’s advisable to transfer them to an external disk for safety. To transfer data, simply select the source drive (e.g., C drive) on the upper left, choose the destination drive (e.g., G drive) on the upper right, pick the desired files from the source drive, and hit the middle ‘Copy’ button to initiate the transfer. If you need to delete a file, select it and press the middle ‘Delete’ button. Remember, deletion is irreversible, so proceed with caution.
transfer data interface
Step 6: If you find that there is data loss, please select the (Undeleter) option on the main interface of the function, and click the (Run) button.
Data recovery function of Renee Passnow
Step 7: Select (Whole Partition Scan) to scan the target hard disk.
scan the whole partition with renee passnow recovery function to reinstall windows 7
Step 8: After the scan completes, select the desired file for recovery and press the Recover button to begin the data restoration process. Ensure you save the recovered file to an alternative external drive to prevent any potential data overwriting. Once the file is safely recovered, eject the USB drive properly to proceed with additional computer repairs.
preview before recovery