1. What a blue screen means
When Windows hits a serious error, it halts to avoid damaging your data and shows a blue screen (the BSOD). The computer then restarts by itself. A single blue screen is often harmless. If you see several in one week, a driver, memory, disk or heat problem is likely.
2. Note the stop code
You will see a large sad face and a "Stop code" below it. Take a photo with your phone. The most common ones:
- CRITICAL_PROCESS_DIED: an important system process crashed. Usually a damaged system file or driver.
- IRQL_NOT_LESS_OR_EQUAL: most often a faulty driver or a memory problem.
- MEMORY_MANAGEMENT: caused by RAM or a driver.
The code makes it easier to search for the problem and to describe it to us.
3. Common causes
The usual suspects are a newly installed driver or Windows update, faulty RAM, a failing hard drive or SSD, overheating (a dusty fan), an incompatible program, and malware. Think about what changed lately. Blue screens often start right after a change.
4. Start in safe mode
If the computer keeps crashing at startup, turn it off with the power button during boot three times. Windows then opens "Automatic Repair". Choose Advanced options > Troubleshoot > Advanced options > Startup Settings > Restart, then press 4 or 5 for Safe Mode. Safe mode loads only basic drivers, so if the problem disappears there, an installed driver or program is the culprit.
5. Roll back the latest update or driver
Go to Settings > Windows Update > Update history > Uninstall updates and remove the most recent one. For a driver, press Windows key + X, open Device Manager, double-click the device (often Display adapters), and on the "Driver" tab click "Roll Back Driver". If the button is grey, choose "Uninstall device" and restart. Windows reinstalls a suitable driver.
6. Try System Restore
Type "Create a restore point" in Start, click "System Restore" and pick a date from before the problems began. It does not touch your personal files, but it removes programs installed after that date.
7. Test memory and disk
Type "Windows Memory Diagnostic" in Start and choose "Restart now and check for problems". The test takes a few minutes, and the result appears as a notification after startup. To check the disk, open Command Prompt as administrator, type chkdsk C: /f and confirm the restart. Also run sfc /scannow to check system files.
8. Check the hardware
On a desktop, look for dust in the fans and vents. On a laptop, avoid using it on soft surfaces like a bed. If you added RAM or another part recently, remove it and test. If the disk is showing warning signs, such as files that will not open, freezes, or clicking sounds, it may be failing. In that case, back up your files right away.
If the blue screen repeats, stop using the computer for important work and back up your files now. Every restart adds data-loss risk on a failing disk.
Let us find the cause
We connect to your computer remotely, read the error logs and pin down the cause. Remote diagnosis and maintenance support starts at 250 TL. If it turns out to be a hardware failure, we direct you to on-site service.
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