Copy files 10× faster than Windows Explorer — with real-time progress, automatic retry, and SSD-optimized multi-threading.
No credit card required.
Features
RoboExtension replaces the built-in copy, move, and delete operations in Windows Explorer with optimised equivalents. No change to your workflow is required.
Ctrl+C, Ctrl+X, Ctrl+V, Delete and Shift+Delete work seamlessly in Windows Explorer. Copy and move operations use an adaptive engine that automatically selects the optimal transfer path for each scenario. Delete operations are significantly faster than Explorer on large file counts.
Displays current transfer speed, estimated time remaining, file count, and the name of the file currently being processed. On SSD sources the file tree is scanned in parallel with the transfer, so the total file count and progress bar denominator appear immediately rather than after a slow sequential enumeration.
Automatically selects the optimal transfer strategy and thread count for the detected hardware configuration, ensuring maximum throughput in every scenario.
Configurable retry count and wait interval. Handles locked files, dropped network connections, and busy network shares without user intervention.
When a file or folder already exists at the destination, a dialog prompts to Replace, Keep Both, Skip, or Cancel All. An "apply to all" checkbox resolves remaining conflicts in one action.
When a file fails mid-operation, a dialog offers Retry, Skip, Skip All, or Abort. Windows Restart Manager identifies every process locking the file, so you know exactly what to close before retrying.
After an operation completes, all failed files are listed with their error reasons. When any failure is access-related, a one-click Retry as Administrator option re-runs the failed paths with UAC elevation.
Optionally re-reads every destination file after the copy completes and compares SHA-256 hashes against the source. Any mismatch is flagged with a one-click re-copy. Useful when archiving originals, migrating drives, or copying across a network you don’t fully trust.
Copy, cut, paste, and delete are intercepted directly from your existing Explorer keyboard shortcuts. Copy and move use an adaptive engine that automatically selects the optimal transfer path. Delete processes the file tree efficiently in bulk, which is significantly faster than Explorer on large file counts.
Delete moves items to the Recycle Bin. Shift+Delete removes items permanently. Both modes skip the "Discovering items" enumeration delay present in Windows Explorer by scanning the file tree up front.
Runs as a background process accessible from the system tray. No taskbar entry. Progress dialogs appear only during active operations.
Windows Explorer silently drops files when copying WSL paths that contain Linux directory symlinks,
producing an incomplete result with no error. RoboExtension resolves every symlink target through WSL's own
path resolver before scanning, so the full tree is copied correctly. Particularly useful for pnpm
node_modules inside WSL, where deep symlink graphs are the norm.
How it works
RoboExtension installs once and operates transparently inside Windows Explorer. No configuration is required for standard use.
The setup wizard optionally configures RoboExtension to start with Windows.
Keyboard shortcuts work exactly as before. RoboExtension intercepts the operations and routes copies and moves through a proprietary adaptive engine tuned for real-world Windows workloads.
A progress dialog displays speed, ETA, file count, and conflict prompts during active operations. It closes automatically on completion.
Interface
RoboExtension uses standard Windows dialog controls. All windows follow Windows 11 visual conventions.
| File | Reason |
|---|---|
| Access is denied. (0x8… | |
| Access is denied. (0x8… | |
| Access is denied. (0x8… | |
| File | Status | Error |
|---|---|---|
| Fail | SHA-256 mismatch | |
| Pass | ||
| Pass | ||
| Pass | ||
| Pass |
Performance
RoboExtension uses its own highly optimized I/O pipeline built on top of Windows native APIs. All numbers are real, measured results — reproducible with the benchmark script in the repository.
91 MB/s — optimized I/O pipeline keeps your NVMe drive fully utilized.
552 MB/s — intelligent buffering avoids OS bottlenecks on large file transfers.
210 MB/s — adapts automatically to any mix of file sizes in the same batch.
Disk-aware scheduling keeps throughput high on spinning disks.
Intelligent buffering minimizes mechanical head movement for maximum throughput.
5.2 MB/s — automatically detects spinning disks and optimizes accordingly.
110 ms regardless of file count or total size — no file data is read or written.
10 ms to move 2.56 GB — file size is irrelevant on same-volume moves.
70 ms for 3,000 mixed files — scales to any tree size.
No file data is read or written on spinning disk — 8,000 files in 1.4 s.
30 ms to move 2.56 GB on HDD — copy-based tools take minutes for the same job.
Time doesn’t scale with file count or size — consistent across any workload mix.
Gains scale with file count — the more files, the bigger the advantage.
20 ms to recycle 2.56 GB — single-operation recycle minimises shell overhead for large files.
Consistent recycle performance across any mix of file sizes.
Gains scale with file count — spinning disks benefit most from reduced per-file work.
Large file recycling uses a single optimized operation, keeping overhead minimal.
Consistent recycle speed on HDDs across all file size distributions.
Purpose-built parallel delete engine — leaves every other tool in the dust.
Large file deletion on NVMe is near-instant — parallel engine keeps the drive saturated.
Scales with file count — the more files, the bigger the advantage over single-threaded delete.
Parallel delete engine makes spinning disks significantly faster on large file counts.
Parallel delete engine keeps spinning disks efficient even for large file deletions.
Worker-thread parallel delete on mixed workloads — the more files, the bigger the advantage.
Measured on i9-13900H, NVMe PCIe 4.0 SSD, 7200 RPM HDD. Results are reproducible with the included benchmark scripts. Individual results vary by hardware and workload.
Pricing
RoboExtension is sold as a one-time per-computer license. There are no subscriptions or recurring fees.
One-time payment · per computer
After payment, send your name, email address, and Machine ID (available in the About dialog) to [email protected]. A license key will be issued within 24 hours.
A 14-day free trial is available. No registration or credit card is required. All features are enabled during the trial period.
Requirements
RoboExtension is a lightweight background application. Disk and memory usage are minimal.