Copying files on Windows has always been a painful experience. Well, at least if you’re copying anything more than a few files. File Explorer often starts fast but runs out of steam, slowing too a crawl as your files finish transferring.
But what if there was a better way? And what if that better way was already built into Windows, just waiting for you to unlock faster transfer speeds?
Robocopy has been part of Windows for years, built into the command line prompts and accessible through the Command Prompt (well, now the windows Terminal). This copy tool is so much more powerful than the basic Windows copy; it’s wild it’s kept hidden.
What is Robocopy?
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And why have you never heard of it?
Let’s start with the most critically important (and disappointing) thing to know about Robocopy: it stands for robust file copy, not robot copy. Yeah,I know,it’s a sad moment for everyone. But now we can focus on how to use Robocopy and why you’ve never heard of it.
Part of the reason it’s obscured from general use is that Microsoft originally created it for system administrators and enterprise environments—people who regularly move massive datasets, manage backups, and synchronize servers. Hence, it’s not talked about much in general conversation.
Another reason you may not have heard about Robocopy is that it doesn’t have an official graphical user interface; it’s a command-line tool that now lives in the Windows Terminal. You won’t find a secret option for this lurking in the Settings, and you can’t enable it in the File Explorer. It’s like one of those ”IYKTYK” Windows features that is just outside your view.
But here’s the key point: you don’t need to be technical to use Robocopy for everyday file transfers. For basic copying tasks, a single simple command is often enough—and even that can outperform File Explorer in real-world use.
Why is Robocopy so much faster than File Explorer?
It’s all in the file management
It’s not hard to make a file copy tool that feels faster than File Explorer. The default Windows copy option has felt dated for years; it’s functional, but it’s slow, fragile, and inefficient—especially once you push it beyond simple drag-and-drop jobs.
As a tool primarily built for admins, Robocopy has efficiency and power built into its core, designed for performance from the ground up.
It handles lots of small files properly
File Explorer absolutely falls apart when dealing with folders containing thousands of small files. Photo libraries, project folders, app data directories, coding environments-anything with complex folder structures tends to bring it to its knees.
Robocopy processes these scenarios far more efficiently.It scans faster, queues smarter, and doesn’t struggle with deeply nested folder structures.
It doesn’t stall when something goes wrong
I’m sure you’ve started a large file transfer only to realize it stopped working after 15 minutes as it needed permission or encountered a glitch. Copy in File Explorer constantly encounters these sorts of problems and just fails.
That’s one of the major differences between Robocopy and File Explorer. Robocopy can intelligently try to fix the problem, retry files, and skip what it can’t access rather than failing the entire process.
Robocopy supports multi-threaded copying
This is one of the biggest differences that gives Robocopy such a speed advantage over File Explorer.
By default, File Explorer largely copies files sequentially. One file at a time, more or less. That’s fine for slow hard drives, but it completely wastes the potential of modern hardware, CPU optimizations, larger drive caches, and so on.
Instead, Robocopy has a switch that enables multi-threaded copying, allowing it to copy multiple files simultaneously.The /MT parameter allows Robocopy to move a huge number of files at the same time, transferring up to 32 files in parallel. On modern systems with SSDs, fast USB drives, and gigabit (or faster) networks, this makes an enormous difference, allowing file transfers to actually make proper use of your hardware rather of trickling along well below its limits.
So, just how much faster is Robocopy than File Explorer?
File transfers go brrr
You don’t want to hear me just talk about how much faster Robocopy is-you want to actually see how much faster it is. There are a few key areas where Robocopy demolishes File Explorer, making use of the aforementioned optimizations.
Thousands of small files
File Explorer is notoriously poor at handling thousands of small files, as it requires a significant amount of processing and exposes inefficiencies in its programming.
In this test, I copied my default screenshots folder containing mor
Robocopy is a robust file copying tool built into Windows that offers more control and features than the standard copy command. It’s particularly useful for mirroring directories and handling large file transfers.
here’s a basic example of how to use Robocopy:
robocopy "SourceFolder" "DestinationFolder" /E
Let’s break down what each part of this command does:
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robocopy– the command itself
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"SourceFolder"– the folder you want to copy from -
"DestinationFolder"– where you want it copied to
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/E- copies all subfolders,including empty ones
You can significantly speed up the copying process by adding the /MT parameter,which enables multi-threading. Here’s how:
robocopy "SourceFolder" "DestinationFolder" /E /MT:16
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/MT:16- uses 16 threads (16 files copied simultaneously)
There are some other parameters you can add for some extra complexity and efficiency:
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/R:1– only retry failed files once (rather of the default 1 million retries) -
/W:1– wait 1 second between retries
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/ETA– shows estimated time remaining
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/J– enables unbuffered I/O, which bypasses the windows cache and is useful for large file transfers
So, the original command with those extra command options would read in this very way:
robocopy "SourceFolder" "DestinationFolder" /E /MT:16 /R:1 /W:1 /ETA
Microsoft Learn’s Robocopy page has every parameter you can use, along with a description of how it effectively works and how to implement it.
File Transfer Safety: Prioritizing Data Protection
The core principle in data transfer should be safety and recoverability, rather than speed. While tools like Robocopy offer powerful features,the inherent risk of misconfiguration necessitates a consideration of more user-pleasant,and safer,alternatives like Windows File Explorer for many users.
Robocopy: Power and Potential Risks
Robocopy (Robust File Copy) is a command-line directory and file replication command-line utility built into Windows, known for its robustness and advanced features. It’s designed for reliable file copying, especially over networks, and offers features like restartable copies and the ability to mirror directory structures. however,its complexity introduces a risk of data loss or corruption if parameters are incorrectly specified.
Unlike graphical user interface (GUI) based tools, robocopy lacks a simple “undo” function. Incorrectly configured switches can lead to unintended consequences,such as overwriting files with older versions or deleting critical data. The absence of a built-in recovery mechanism makes it a less forgiving option for users unfamiliar with its intricacies.
Example: Using the `/MIR` switch without careful consideration can delete files in the destination that don’t exist in the source, possibly leading to data loss if the source is incomplete or incorrect. Microsoft’s Robocopy documentation details the risks associated with the `/MIR` switch and emphasizes the importance of testing commands before applying them to critical data.
Windows File Explorer: user-Friendliness and Data Recovery
Windows File Explorer provides a graphical interface for file management and transfer, prioritizing user-friendliness and data safety. Its intuitive design and built-in recovery features make it a more secure option for many users, particularly those less pleasant with command-line tools.
File Explorer incorporates features like the recycle Bin, which allows users to restore accidentally deleted or overwritten files. The CTRL + Z shortcut enables immediate undoing of recent actions, providing a safety net against unintentional errors.these features significantly reduce the risk of permanent data loss compared to Robocopy.
Example: If a user accidentally drags and drops a file to the wrong location in File explorer, they can instantly press CTRL + Z to revert the action. alternatively, if a file is deleted, it is moved to the Recycle Bin, where it can be easily restored. Microsoft’s support documentation details the functionality and recovery options available through the Recycle Bin.
The Importance of Accessibility for a Global User Base
Considering the vast global user base of Windows, prioritizing accessibility and ease of use in basic operations like file transfer is crucial. millions of users rely on Windows for daily tasks, and not all possess the technical expertise to confidently utilize complex tools like Robocopy.
Maintaining user-friendly features like the Recycle Bin and undo functionality reduces the barrier to entry for less experienced users and minimizes the potential for catastrophic data loss. This approach aligns with Microsoft’s broader commitment to providing accessible and reliable computing experiences.
Evidence: As of December 2023, Windows held approximately 72.98% of the global desktop operating system market share, according to Statista. This demonstrates the widespread reliance on Windows and the importance of prioritizing user-friendly features for a diverse user base.
conclusion: Balancing power with Protection
While Robocopy remains a valuable tool for experienced users and automated tasks, its complexity necessitates caution. For general file transfer needs, especially for users prioritizing data safety and ease of recovery, Windows File Explorer offers a more secure and accessible solution. The availability of features like the Recycle Bin and undo functionality provides a critical layer of protection against accidental data loss, making it the preferred choice for many scenarios.
