AppReadWriteCounter is a tool for Windows that counts and displays the current file read / write operations of every application running on your system. It displays the number of read/write bytes, the number of read/write operations, current calculated read/write speed, and the details about the application (product name, product version, and so on) that makes the file read/write operations.
Immediately after running it, the main window displays every application that currently read or write files. Be aware that the counters in this tool are not per process but per application, so if you have multiple processes for the same application , AppReadWriteCounter merges them into one line. Also, if you close an application and then run it again, AppReadWriteCounter will continue the update the read/write counters of the same application entry. At any time, you can clear the entire list and start with empty window by pressing Ctrl+X (Clear All). You can also reset the counters of selected items by pressing Ctrl+R (Reset Selected Counters).
What's new in 1.46
Version 1.46:
Added 'Process User' column (Only when the 'Group By' option is 'Process ID').
Yes, AppReadWriteCounter is free to download and use on Windows.
What is the latest version of AppReadWriteCounter?
The latest version is 1.46, released on Sep 25, 2026.
Is it safe to download AppReadWriteCounter?
The download button links to the official installer published on nirsoft.net, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with af07f91e5a59eb75f39962ca3622ce072415a9e897ba3f9a7e2d27cee6b7b648.
Which Windows versions does AppReadWriteCounter support?
AppReadWriteCounter runs on Windows and is available for 32-bit (x86), 64-bit (x64) systems.
How do I uninstall AppReadWriteCounter?
Open Settings › Apps › Installed apps, find AppReadWriteCounter and select Uninstall. From the command line, run winget uninstall --id=NirSoft.AppReadWriteCounter -e.
Is there a portable version of AppReadWriteCounter?
Yes. AppReadWriteCounter is available as a portable ZIP archive (appreadwritecounter-x64.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
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