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Dhiampp's avatar
Dhiampp
Copper Contributor
Jul 12, 2026

Windows 11 PC Unexpected system crashes

My Windows 11 PC experiences unexpected system crashes, often happening without warning and causing the system to shut down abruptly. These crashes occur randomly during different tasks, and I have tried updating drivers and checking for updates without success, making it difficult to identify the cause or find a reliable solution to prevent the crashes.

7 Replies

  • Astaroth999's avatar
    Astaroth999
    Copper Contributor

    In addition to checking Reliability Monitor and WHEA events, you can also run a quick memory test to rule out hardware issues.

    In Windows 11 you can use Windows Memory Diagnostic:

    1. Press Win + R
    2. Type mdsched.exe
    3. Select “Restart now and check for problems”

    If the tool finds errors, it usually indicates issues with RAM or power delivery.

    Also check Event ID 41 in Event Viewer: it often appears when the system shuts down due to power, PSU, or motherboard problems.

    This helps you quickly determine whether the cause is hardware or software.

  • Jonah_Schreiber's avatar
    Jonah_Schreiber
    Copper Contributor

    Hi, your error code already indicates it's related to memory management.

    What you can do is check the built-in log of crashes. For this, press Win + R, type perfmon /rel, and hit Enter (you can also just search for "Reliability Monitor" in the Start menu search bar). This should open the Reliability Monitor of Windows, which logs the issues and date/times of your crashes — helping you narrow the problem down to a specific driver, application, or hardware failure.

    If you sometimes face the issue that the PC crashes instantly without even showing a blue screen, the problem is most likely hardware related. For this, you can open PowerShell as Administrator and run:

    Get-WinEvent -FilterHashtable @{LogName='System'; ProviderName='Microsoft-Windows-WHEA-Logger'} -MaxEvents 30 | Format-List TimeCreated, Id, Message

    This pulls the last 30 hardware-related error events (WHEA = Windows Hardware Error Architecture). If you see entries here, the Message field will usually tell you whether it's related to the CPU, memory, or another hardware component.

    Hope this helps narrow the issue down. If the issue turns out to be hardware related for example, if it states that a CPU core is failing (I had this exact case just this week), keep in mind the root cause could also be power mismanagement from the power supply or the motherboard, rather than the CPU itself being defective.

    (Drafted with AI assistance, but the approach and steps are my own and verified before posting.)

  • OliverWang's avatar
    OliverWang
    Iron Contributor

    Check the error codes in the system logs in Event Viewer, and update the corresponding hardware drivers or disable Fast Startup based on the source.

     

  • Astaroth999's avatar
    Astaroth999
    Copper Contributor

    A quick recommendation to improve security and reduce unexpected issues in Windows 11 is enabling SmartScreen.

    You can turn it on via: Settings → Privacy & Security → Windows Security → App & Browser Control.

    SmartScreen helps block malicious downloads and suspicious websites. It’s a very effective protection layer, especially for users who might accidentally install unsafe software that can lead to crashes or instability.

  • Astaroth999's avatar
    Astaroth999
    Copper Contributor

    A quick recommendation to improve security and reduce unexpected issues in Windows 11 is enabling SmartScreen.

    You can turn it on via: Settings → Privacy & Security → Windows Security → App & Browser Control.

    SmartScreen helps block malicious downloads and suspicious websites. It’s a very effective protection layer, especially for users who might accidentally install unsafe software that can lead to crashes or instability.

  • Pihusvy's avatar
    Pihusvy
    Copper Contributor

    If you see Event ID 41 consistently, the crash is likely related to power, driver, or hardware failure rather than a clean OS shutdown.

  • zhangzijun's avatar
    zhangzijun
    Copper Contributor

    你好,我来自中国。

    我认为这个社区不适合就常见问题进行咨询。你想参加问答环节吗?(实际上,我是问答环节的主持人)

    当然,针对你的问题,我觉得你需要提供一个内存转储文件,应该在 c:\windows\minidump 下

    https://learn.microsoft.com/answers/questions