The solution to the "KMODE EXCEPTION NOT HANDLED" blue screen error is as follows: 1. Update or rollback the driver, especially graphics card, network card and motherboard driver, can be batch updated using Device Manager or third-party tools, or enter safe mode to uninstall the problem driver; 2. Check memory and hard disk problems, run Windows memory diagnostic tools, chkdsk commands, and clean or replace the memory module; 3. Uninstall recently installed software or Windows updates, especially antivirus software or optimization tools; 4. Use the installation USB disk to execute system file repair commands or reset the system. It is recommended to start with simple steps, prioritize driver and software issues, and then consider hardware and system repairs.

"KMODE EXCEPTION NOT HANDLED" is a relatively common blue screen error, which usually occurs in the kernel mode of the Windows system and an unprocessable exception occurs. This problem may be caused by driver conflicts, hardware issues, or system file corruption. Solving it is not complicated, but requires step-by-step troubleshooting.

1. Update or rollback the driver

One of the most common causes of this error is that the driver is incompatible or damaged, especially graphics, network cards, and motherboard drivers.

• Check if there are new drivers installed recently, if so, try rolling back to the old version
• Update drivers for all critical devices using Device Manager, especially display adapters and storage controllers
• You can use third-party tools such as Driver Booster or Snappy Driver Installer to batch update drivers
• If you are not sure which driver has a problem, you can enter safe mode to uninstall the recently updated driver

If you have this problem after you have just upgraded the graphics card driver, it is likely that it is a driver problem.

2. Check memory and hard disk problems

Hardware issues can also cause this error, especially memory stick or hard disk errors.

• Run the memory diagnostic tool that comes with Windows (enter "Windows Memory Diagnostics" in the search bar)
• Run chkdsk /f /r check with command prompt and fix disk errors
• If you have multiple memory sticks, try to unplug and test one by one to eliminate the impact of bad sticks
• Clean the gold finger part of the memory stick, sometimes dust or poor contact can also cause problems

If the memory or hard drive is physically damaged, it is recommended to replace it as soon as possible, otherwise problems will occur repeatedly.

3. Uninstall the recently installed software or update

Some software or Windows updates may conflict with the system, resulting in a blue screen.

• Try entering safe mode and uninstall recently installed software, especially antivirus software or system optimization tools
• Uninstall the most recent Windows updates in Control Panel > Programs > Uninstall Programs > View Installed Updates
• If you remember which update starts to have problems, you can uninstall it directly

Some third-party software will load driver-level services in the background, which can easily cause instability.

4. Perform system file repair or reset

If none of the above methods work, it may be that the system core file is corrupted.

• Use the installation USB drive to enter the recovery environment and run the following command:
  • sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows
  • DISM /Image:C:\ /Cleanup-Image /RestoreHealth
• Or directly select "Reset this computer" to retain personal files but reinstall the system

Although this method is a little troublesome, it can completely solve the problem.

Basically these methods. Start with the simplest troubleshooting, such as driver and software issues, and then consider hardware and system repair. In many cases, restarting or updating the driver can be done, so don't worry too much.

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