While it may seem like a catastrophic hardware failure, the root cause is frequently software related or stems from a specific system configuration. Windows 7 relies heavily on correct drivers for hardware communication, and a buggy driver—particularly for the chipset or graphics card—can crash the system kernel.
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Windows 7, despite its age, provides robust tools to help pinpoint the problem. Testing a PSU requires a multimeter or a paperclip test to verify the output voltages are stable.
Often, the issue is a symptom of an overheating CPU or power supply struggling to meet demand. Running a full system scan with a reputable offline scanner is necessary to rule out this threat.
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If the system runs stable in Safe Mode, the issue is likely a recently installed driver or application that needs to be updated or uninstalled. Some sophisticated malware is designed to corrupt system files or monopolize resources, creating a scenario where the computer appears to freeze and then cut power.
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