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DiskCountersView 1.31 by NirSoft is a lightweight system information utility designed to expose the low-level performance statistics that Windows maintains for every fixed and removable disk visible to the operating system. Upon launch the program scans the registry and performance counters API, then presents a single-table overview listing each physical drive, partition volume, and logical disk alongside the exact number of read and write operations performed since boot, the cumulative volume of bytes transferred in each direction, and the corresponding transfer time. Additional columns expose the device name, interface type, partition number, starting offset, partition style, and the hidden performance counter index assigned by the system, enabling administrators to correlate the figures with other monitoring tools or with the raw data stored in Windows Performance Monitor. Typical use cases include quickly verifying that a newly installed SSD is being exercised as expected, detecting unexpected write amplification on supposedly read-only volumes, comparing throughput between different controller ports, or capturing before-and-after metrics when benchmarking storage tweaks. Because the counters are cumulative from system start, the utility also offers a convenient way to reset statistics by simply rebooting, and the entire table can be exported to TXT, CSV, HTML, or XML for long-term trend analysis. Unlike resource-heavy monitors, DiskCountersView consumes virtually no CPU or I/O itself, making it safe to leave open during intensive storage tests. The application is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version, and supporting batch installation of multiple applications.
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