Parameter Incorrect Copy File? Fix & Causes

Updated 4 November 2026 · Standard formula, shown below

The “Parameter incorrect” error when copying files in Windows means the system cannot read or write to the destination or source due to a corrupted file system, a failing drive, or an invalid path. This guide explains the common causes and provides step-by-step fixes to get your files copied successfully.

What Does “Parameter Incorrect” Mean?

When you try to copy, move, or open a file and Windows returns “Parameter incorrect” (error code 0x80070057), it indicates that the input/output request was malformed or the device could not interpret it. This is not a permission issue (that would be “Access Denied”) and not a file-in-use error. It typically points to deeper problems with the storage medium, the file system structure, or the way Windows is addressing the drive.

Common Causes

Corrupted file system: Unexpected power loss, improper ejection, or bad sectors can damage the Master File Table (MFT) or directory entries, making files unreadable.
Failing hard drive or SSD: Physical damage or degrading NAND cells can cause read/write failures that manifest as this error.
Invalid drive letter or path: A disconnected network drive, a removed USB drive, or a drive letter conflict can leave Windows pointing to a non-existent location.
Outdated or faulty storage drivers: Especially common with external USB drives or older SATA controllers.
File name too long or invalid characters: Windows has a 260-character path limit (MAX_PATH) and disallows certain characters like :, *, ?, ", <, >, |.
Encryption or compression attributes: Rarely, files with EFS (Encrypting File System) or NTFS compression can trigger this when copied to a non-NTFS volume.

How to Fix the Error

Try these fixes in order, from least to most invasive. Always back up important data first if you can access the drive at all.

Restart your computer. A simple reboot can clear temporary glitches and release stuck handles on the drive.
Try a different USB port or cable. For external drives, a faulty cable or port can cause intermittent errors. If using a USB hub, connect directly to the motherboard.
Run CHKDSK. Open Command Prompt as Administrator and run chkdsk X: /f /r (replace X with the drive letter). This scans for bad sectors and repairs file system errors. You may need to restart if the drive is in use.
Check the file path. If the file is in a deeply nested folder, move it to the root of the drive (e.g., C:\Temp) and try copying again. Shorten the file name if it's very long.
Update storage drivers. Open Device Manager, expand "Disk drives" and "Storage controllers," right-click each device, and select "Update driver." Also check the manufacturer's website for chipset drivers.
Use a different copy method. Try copying via Command Prompt with robocopy or xcopy. These tools sometimes bypass the issue. For example: robocopy C:\source D:\dest /E
Check disk health. Use tools like CrystalDiskInfo (free) to view SMART data. If the drive shows "Caution" or "Bad," it's likely failing and you should replace it.
Format the drive (last resort). If the drive is empty or you've backed up everything, formatting will rebuild the file system. Right-click the drive in File Explorer, select Format, and choose NTFS (or exFAT for external drives that need Mac compatibility).

When the Error Occurs on Network Drives

If the source or destination is a network share, the error often means the connection dropped or the server is unreachable. Check your network connection, ping the server, and remap the drive. Also, ensure the server has enough free space and that you have write permissions.

Prevention Tips

Always safely eject external drives before unplugging.
Use a UPS (uninterruptible power supply) to avoid sudden power loss.
Keep your OS and drivers updated.
Regularly back up important files to a second location.
Avoid filling drives to 100% capacity; leave at least 10% free.

Frequently Asked Questions

Can I recover data from a drive with this error?

Yes, often. If CHKDSK can't fix it, try data recovery software like Recuva or TestDisk. These can often read raw data even when the file system is damaged. If the drive makes clicking noises or isn't detected at all, stop using it and consult a professional data recovery service.

Why does this happen on a brand new USB drive?

New drives can come with a corrupted file system or be counterfeit (with less capacity than advertised). Run CHKDSK and check the actual capacity with a tool like H2testw. If it fails, return the drive.

Does this error mean my hard drive is dying?

Not always. It can be a one-time glitch or a file system issue. But if it happens frequently on the same drive, it's a strong indicator of hardware failure. Check SMART data and back up immediately.

Can I copy the file to a different location to avoid the error?

Sometimes. If the error is due to a bad sector in a specific folder, copying to a different drive or even a different folder on the same drive might work. However, if the drive is failing, the error will likely recur.

Is there a way to bypass the 260-character path limit?

Yes, you can enable long paths in Windows 10/11 via Group Policy (Computer Configuration > Administrative Templates > System > Filesystem > Enable Win32 long paths). Alternatively, use a tool like 7-Zip to copy files, as it handles long paths better.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.