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hdd timeout

About this tag
The hdd timeout tag on WindowsForum.com covers discussions about the relationship between hard drive spin-down settings and system performance, particularly high CPU usage by the NT Kernel & System process. Users explore why disabling HDD timeout—the feature that spins down idle drives after a set period—might resolve elevated CPU usage in PID 4. The tag includes troubleshooting threads where members share experiences and seek technical explanations for this observed behavior. Topics focus on Windows power management, drive idle timeouts, and their impact on system resources, without extending to broader hardware or enterprise IT contexts.
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    Windows 10 Why does disabling HDD timeout allegedly solve high CPU usage on "NT Kernel & System"?

    I never had the high Kernel & System CPU usage, but I saw this issue on a friend's computer. The process with PID 4 had a high CPU usage. But that issue solved itself. However, how is disabling HDD timeout (spin down after ** minutes) meant to solve the CPU usage issue? How is it related?
    • WinFreak
    • Thread
    • cpu usage hardware issues hdd timeout high cpu nt kernel pid system processes timeout settings troubleshooting windows performance
    • Replies: 1
    • Forum: Windows Help and Support
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