The laptop displays a blue screen and reboots: what to do in 2026

Blue screen of death (BSOD) on a laptop is one of the most frightening errors for users. The computer suddenly crashes into kernel mode, displays a cryptographic error code, and reboots in an endless loop. Reasons may vary from driver conflict to physical damage to the hard drive. In 90% of cases, the problem can be solved on your own, without resorting to the services of a service center - if you know where to start.

This article will help you figure out why a laptop ASUS, Lenovo, HP or Acer It gives a blue screen and goes to reboot. We will analyze BSOD error codes that are most common in 2026, and we will give step-by-step diagnostic instructions - from checking RAM to restoring system files. We will pay special attention to laptops with Windows 11, where the algorithms for processing critical errors have changed compared to the “ten”.

1. Deciphering a blue screen: what do error codes mean?

The first thing you need to pay attention to when you appear BSOD - this is stop code (For example, CRITICAL_PROCESS_DIED or IRQL_NOT_LESS_OR_EQUAL). It appears at the top of the screen and points to the root of the problem. Below is a table with the most common codes and their meanings for Windows 10/11:

If your laptop reboots too quickly for you to write down the code, disable automatic reboot:

1. Clamp Win + R, enter sysdm.cpl.
2. Go to the tab Advanced → Boot and Recovery → Options.
3. Uncheck Perform automatic reboot.

⚠️ Attention: If the error code starts with 0x0000007B, this indicates a problem with the Windows boot loader. In this case, you will need a bootable USB flash drive with Media Creation Tool and manual recovery BCD.

2. First steps: what to do immediately after BSOD

Before you dig into the settings, go through some basic diagnostic steps. They will help narrow down the range of possible causes:

• 🔌 Check power: Unplug the laptop, remove the battery (if removable) and hold the power button for 30 seconds. This will release the residual charge on the capacitors.
• 🌡️ Temperature control: Use HWMonitor or Core Tempto check the temperature CPU/GPU. Normal: up to 85°C under load.
• 🔄 Latest changes: Remember what you did before the appearance of BSOD: updated drivers, installed programs, connected new hardware?
• 🛡️ Antivirus scan: Run the scan Malwarebytes or built-in Windows Defender for the presence of rootkits.

If the laptop boots into safe mode (click F8 or Shift + Reboot), try to roll back the system:

1. Win + R → rstrui → Enter
2. Выберите точку восстановления за 2–3 дня до появления BSOD
3. Подтвердите откат

Disable peripherals (mouse, keyboard, printer)

Check the RAM connection (remove and insert back)

Start the laptop without battery (only from mains)

Reset BIOS (remove CMOS battery for 5 minutes) -->

3. Hardware diagnostics: RAM, hard drive, overheating

About 40% of blue screens are related to hardware problems. Let's start with the most vulnerable - RAM.

RAM test

Use the built-in utility mdsched.exe:

1. Click Win + R, enter mdsched.exe.
2. Select Reboot and check.
3. After rebooting, wait until the test completes (may take up to 20 minutes).

If you find errors, try:

• 🔄 Rearrange the slats RAM to other slots.
• 🧹 Clean the contacts with an eraser (for oxidized modules).
• 🛒 Replace the faulty strip (if the test shows errors in one module).

Checking the hard drive

For HDD/SSD use the command chkdsk:

chkdsk C: /f /r /x

If the drive makes clicking noises or is not detected in the BIOS, this is a sign physical wear and tear. In this case, only replacing with a new one will help. SSD (we recommend Samsung 980 Pro or Crucial P5 Plus for laptops).

Overheat control

Overheating CPU/GPU often causes BSOD with code WHEA_UNCORRECTABLE_ERROR. To check:

1. Install ThrottleStop (for Intel) or Ryzen Master (for AMD).
2. Run a stress test AIDA64 for 10–15 minutes.
3. If the temperature exceeds 95°C, dust removal and thermal paste replacement are required.

⚠️ Attention: If your laptop turns off when plugged in, the problem may be with the power supply. Check the voltage with a multimeter - it should match that indicated on the sticker (for example, 19.5V 3.33A for Lenovo ThinkPad).

4. Driver conflicts: how to find and resolve

Drivers are the second most common source BSOD. Especially after updates Windows 11, where Microsoft forcibly installs universal drivers that are not always compatible with hardware.

How to identify a problematic driver

Use BlueScreenView from NirSoft:

1. Download the utility from the official website.
2. Run as administrator.
3. In the list of dumps, find the latest BSOD and look at the column Caused By Driver.

Typical culprits:

• 🖥️ nvlddmkm.sys - driver NVIDIA (update via GeForce Experience).
• 🔊 RTKVHD64.sys - audio driver Realtek (delete via Device Manager).
• 🌐 netio.sys - network driver (problem with Wi-Fi adapter or VPN).

How to reinstall the driver

For a clean install:

1. Win + X → Диспетчер устройств
2. Найдите проблемное устройство (например, видеокарту)
3. ПКМ → Удалить устройство → Поставить галочку "Удалить программы драйверов"
4. Перезагрузите ноутбук и установите драйвер с официального сайта производителя

5. Restore system files and registry

Damaged files Windows or registry errors may cause CRITICAL_PROCESS_DIED or KERNEL_DATA_INPAGE_ERROR. To restore, use the built-in utilities.

Checking the integrity of system files

Launch a command prompt as administrator and run:

sfc /scannow
dism /online /cleanup-image /restorehealth

If SFC finds errors but can't fix them, try:

findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log > "%userprofile%\Desktop\sfc_errors.txt"

This will create an error log on your desktop. Look for lines with Cannot repair.

Registry restoration

If the BSOD appears after changing the registry (for example, after cleaning CCleaner), restore the backup:

1. Go to C:\Windows\System32\config\RegBack.
2. Copy the files DEFAULT, SAM, SECURITY, SOFTWARE, SYSTEM.
3. Paste them in C:\Windows\System32\config with replacement.

⚠️ Attention: Incorrectly editing the registry can make the system inoperable. If you are not sure, use a restore point instead of manually copying files.

6. Viruses and malware as a cause of BSOD

Some viruses (for example, rootkit-s) modify system files, which leads to PAGE_FAULT_IN_NONPAGED_AREA or SYSTEM_THREAD_EXCEPTION_NOT_HANDLED. Standard antiviruses cannot detect them.

How to check your laptop for hidden threats

Use a combo of three utilities:

1. Malwarebytes Anti-Malware (scan for adware and spyware).
2. Kaspersky Virus Removal Tool (deep scan of boot sectors).
3. HitmanPro (search for rootkits).

Start scanning at safe mode with network support (click F8 when loading).

What to do if your antivirus finds threats

• 📁 Move detected files to quarantine.
• 🔄 Restart your laptop and check for BSOD.
• 🛡️ Install Bitdefender Total Security for permanent protection (it blocks modification of system files).

7. Hardware problems: what to do if nothing helps

If all software methods have been tried, and the laptop continues to display a blue screen, the problem lies in gland. Let's look at typical scenarios:

Faulty motherboard

Symptoms:

• BSOD with code WHEA_UNCORRECTABLE_ERROR when turned on.
• The laptop does not turn on without a battery (even from the mains).
• Extraneous sounds (squeaking, crackling) from the speakers.

Solution: Check the capacitors for swelling (especially around VRM-modules). If you have soldering skills, replace it. Otherwise, contact service.

Problems with the video card

For laptops with NVIDIA Optimus (For example, MSI GS66 or ASUS ROG Zephyrus) typical errors VIDEO_TDR_FAILURE. You can check the GPU like this:

1. Run FurMark in a window (not full screen!).
2. If after 5–10 minutes artifacts appear (stripes, flickering), the video card is degrading.
3. Check the temperature: if GPU heats up above 100°C - thermal pads need to be replaced.

Defective battery

A swollen battery can put pressure on the motherboard, causing short circuits. Check:

• 🔋 Disconnect the battery and work only from the network. If the BSOD disappears, the problem is in the battery.
• 📏 Inspect the battery for bloating (normal thickness is up to 1 cm).

8. Extreme measures: reinstalling Windows and replacing components

If all previous steps have failed, radical methods remain.

Clean Windows installation

Procedure:

1. Download Media Creation Tool from the Microsoft website.
2. Create a bootable USB flash drive (minimum 8 GB).
3. Boot from the flash drive (F12 or Esc to select a device).
4. At the disk selection stage, delete all partitions and create new ones.

Important: After installation, immediately update the drivers from the official website of the laptop manufacturer (do not use DriverPack Solution!).

When replacement of components is required

Replace:

• 💾 Hard drive - if chkdsk finds bad sectors, and CrystalDiskInfo shows status Caution or Bad.
• 🖥️ RAM - if memtest86 finds errors in both modules.
• 🔌 Power supply - if the voltage sags under load (checked with a multimeter).

⚠️ Attention: When replacing SSD in laptops Lenovo Legion or Dell XPS Windows license transfer may be required. Use the utility ProduKey from NirSoft to save your activation key.

FAQ: Frequently asked questions about a blue screen on a laptop

bcdedit /set {default} bootmenupolicy legacy
shutdown /r /t 0