Blue screen of death (BSOD) on a laptop: what to do and how to fix it

Blue screen of death (BSOD) is one of the most frightening errors that users encounter Windows. Sudden code failure CRITICAL_PROCESS_DIED or IRQL_NOT_LESS_OR_EQUAL not only interrupts work, but also leaves many questions: why did this happen, how to save the data and can it be prevented from happening again? Unlike normal freezes, BSOD signals a critical error at the system kernel level - it cannot be ignored.

Statistics show that in 63% of cases, BSOD is caused by faulty drivers or conflicting software, and not hardware failures, as many people think. This is good news: most errors can be fixed on your own without resorting to service centers. This article contains an analysis of all possible causes (from simple overheating to damage to system files) and step by step instructions for laptops ASUS, Lenovo, HP, Acer and other brands. And if you are afraid of losing data, we will tell you how to save it even on a non-working device.

1. First steps when a blue screen appears

When the laptop gives out BSOD, the main thing is not to panic and not try to immediately reboot the device with the power button. Follow this algorithm:

• 📝 Write down the error code. The screen always displays a stop code (for example, MEMORY_MANAGEMENT or VIDEO_TDR_FAILURE). It will help more accurately diagnose the problem. If the screen disappears too quickly, check the Windows log for the code later.
• 🔌 Disconnect all peripheral devices: flash drives, external hard drives, printers, gamepads. Hardware conflict is a common cause of BSOD, especially when connecting uncertified gadgets.
• 🔄 Wait for automatic reboot (if it doesn’t happen, hold down the power button for 10 seconds). Do not forcefully terminate the process: this may worsen the damage to system files.

If the laptop boots normally after rebooting, check immediately reliability log:

1. Click Win + R, enter perfmon /rel and press Enter.
2. In the section Reliability log look for red crosses - they indicate critical events (including BSOD).
3. Click on the event to see details: error code, name of the problematic file (for example, nvlddmkm.sys for video driver NVIDIA).

2. Decoding BSOD error codes

The error code on the blue screen is a hint where to look for the problem. Here are the most common stop codes and their meaning:

If your error code is not in the table, use the official one Microsoft base. For example, code WHEA_UNCORRECTABLE_ERROR often points to hardware problems (processor, motherboard or overheating).

3. Checking hardware causes of BSOD

If the blue screen appears regularly, first eliminate hardware faults. Start with the simplest:

• 🔥 Overheating. Install the program HWMonitor or Core Temp and check the temperature of the processor/video card under load. Normal: up to 85°C for CPU, up to 90°C for GPU. If higher, clean the cooling system from dust (on laptops Lenovo Legion And ASUS ROG this is critical!).
• 🖥️ RAM. Run the built-in test:

  1. Нажмите Win + R, введите mdsched.exe и выберите "Выполнить перезагрузку и проверку".
  2. После перезагрузки дождитесь завершения теста (может занять 20-30 минут).
  3. Если найдены ошибки — попробуйте переставить планки RAM в другие слоты или замените одну из них.

• 💾 Hard drive/SSD. Check the health of the drive with the utility CrystalDiskInfo. If the status is “Alarm” or “Bad,” urgently copy the data and get ready to replace the disk. This parameter is critical for SSDs Total Host Writes — if it is close to the drive’s life, BSOD may appear due to “broken” cells.

⚠️ Attention: If the laptop gives a BSOD when connected to the network (code DRIVER_POWER_STATE_FAILURE), the problem may be in the power supply. Try running on battery power or replace the charger. On models HP Pavilion And Dell Inspiron this is more common due to unstable voltage.

4. Elimination of software causes

In 70% of cases, BSOD is caused by drivers, conflicting software or viruses. Proceed in order:

4.1. Driver update/downgrade

The most problematic drivers are video cards (NVIDIA, AMD, Intel), network adapters (Realtek, Qualcomm) and chipsets. To update them correctly:

Download the driver ONLY from the official website of the laptop manufacturer (not from Windows Update!)|Use Display Driver Uninstaller (DDU) to completely remove the old driver|Install the new version in "clean install" mode|Reboot the laptop and check stability-->

For laptops with hybrid graphics (NVIDIA Optimus or AMD Switchable) be sure to update both drivers - and integrated (Intel UHD), and discrete.

4.2. Checking for viruses and malware

Some viruses (for example, mining scripts or rootkits) can cause BSOD by masquerading as system processes. Do a deep check:

1. Boot the laptop into safe mode (hold Shift on reboot → Diagnostics → Advanced Options → Boot Options → Safe Mode).
2. Run Kaspersky Virus Removal Tool or Dr.Web CureIt! (they do not require installation).
3. Pay attention to folders C:\Windows\Temp And C:\Users\Your_name\AppData\Local\Temp — temporary malicious files are often hidden there.

4.3. Recovering system files

Corrupt Windows files are a common cause of BSOD after updates or improper shutdown. Run a command prompt as administrator and run in order:

sfc /scannow
dism /online /cleanup-image /restorehealth
chkdsk /f /r

If sfc finds errors but cannot fix them, use restore point:

1. Click Win + R, enter rstrui.
2. Select the restore point created to appearance of BSOD.
3. Confirm the rollback - the process will take 10-15 minutes.

5. Diagnosis of BSOD on laptops of different brands

Laptop manufacturers often modify drivers and BIOS to suit their hardware, so universal solutions do not always work. Here specific recommendations for popular brands:

For laptops MSI (series GE, GS, GF) typical failures due to incorrect BIOS settings (especially during overclocking). Go to BIOS (button Del on boot) and reset the settings to factory defaults (Load Default Settings).

6. How to save data if your laptop won’t boot

If BSOD appears every time you try to turn it on, and there are important files on the disk, proceed as follows:

1. Connect the hard drive to another PC:
   • Remove the SSD/HDD from the laptop (you will need a screwdriver and a disassembly guide for your model).
   • Connect it via USB adapter (or install in another computer as a second disk).
   • Copy the data to backup media.
2. Use LiveCD:
   • Create a bootable USB flash drive with Ubuntu or Hiren’s BootCD (instructions are on the official websites).
   • Boot from the flash drive, select the "Try Ubuntu without installing" mode.
   • In the file manager, find your disk (usually /dev/sda1) and copy the data to an external drive.

⚠️ Attention: If the disk has been enabled BitLocker encryption, you will need a recovery key to access the files. It can be saved in your Microsoft account (check here https://account.microsoft.com/devices/recoverykey).

For laptops with NVMe SSD (For example, Samsung 970 EVO or WD Black SN750) may need an adapter M.2 → USB. It is inexpensive (about 500 rubles), but it will save time and nerves.

7. When to contact the service center

Not all BSOD problems can be resolved on your own. Contact a specialist if:

• 🛠️Laptop doesn't turn on at all (there is no response to the power button, the indicators do not light up).
• 🔥 BSOD appears immediately after switching on, without even having time to show the Windows logo.
• 💥 You see physical damage (swollen capacitors on the motherboard, traces of oxidation).
• 🔄 All software methods have been tried, but the error returns (especially codes MACHINE_CHECK_EXCEPTION or KERNEL_DATA_INPAGE_ERROR).

The average cost of diagnostics in service centers is 500-1500 rubles. Repairs may cost:

• 1500-3000 rubles - replacing thermal paste/cleaning dust;
• 3000-8000 rubles - replacement of RAM or SSD;
• 10,000+ rubles - repair of the motherboard or replacement of the BIOS chip.

For laptops Apple MacBook (if you have Windows installed via Boot Camp) please contact only authorized services - Do-it-yourself repairs will void the warranty.

FAQ: Frequently asked questions about the blue screen of death

1. Зайдите в Параметры → Обновление и безопасность → Журнал обновлений.
2. Нажмите "Удалить обновления".
3. Найдите последнее установленное обновление (обычно оно помечено как "KBxxxxxxx") и удалите его.
4. Перезагрузите ноутбук.