Bug: Copying Large files Issue

[auzideals]

Description

using easeus to do backup software for imaging drives/computers, copy from computer to my nas, or from nas to computer, status lightd green, no progress, straight into completed status, images 27GB, 32GB, 62GB all failed, using draging with UAC at always notify, even using Ctrl C / Ctrl V, at any level of UAC, still fails, copying small files and directories works ok, progress status is working.
image file naming B550-3900X-Disk_20251109_Full_v1.pbd
This is the latest bought from miscrosoft store just yesterday, uninstalled, reinstalltion same issue.

Steps To Reproduce

draging, copying using ctrl C/ ctrl V, diffrent level UAC, still not working, status lights up immediately in full green as completed task

Files Version

4.0.11.0

Windows Version

10.0.26200.7019

User ID

eeed5de4-5f4c-455e-9e0e-271ea4609a31

Log File

debug.log

[Josh65-2201]

Thanks for the report, does Windows File Explorer show any errors when coping?

[auzideals]

No, file explorer works fine, only file 4 fails to copy and green status is showing immediately Yesterday I installed it on a new system has only os and office, still file 4 does the same thing, status showing immediately completed green task and files not showing to destination Moh Mubaslat ***@***.*** Australia

…

On Tue, 11 Nov 2025, 3:31 am Josh65-2201, ***@***.***> wrote: *Josh65-2201* left a comment (files-community/Files#17838) <#17838 (comment)> Thanks for the report, does Windows File Explorer show any errors when coping? — Reply to this email directly, view it on GitHub <#17838 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BZ5P6HNBEPLHOWMKFQ5QVXL34C4W3AVCNFSM6AAAAACLTD5RWWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTKMJSG4YDIMJZGQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[auzideals]

Hi Team
Today i tried Files to copy these system images into a local drive and a usb external drive, same issue, status lit full green and ststus comleted, no backup either local or external drives, hopefully this helps in your investigation, using windows file explorer works perfect.

[RobertAgee]

Same thing happening to me. Cleaning up my ai model folders and it crashes Files every time. Forced to go back to Explorer to move these.

[Josh65-2201]

@RobertAgee This doesn't have anything involving crashing. Please make your own bug report

[RobertAgee]

Oh hey @Josh65-2201 Allow me to make the parallels more explicit by reiterating @auzideals experience

Hi Team Today i tried Files to copy these [large files] into a local drive and a usb external drive, same issue,
no backup either local or external drives,
using windows file explorer works perfect

in addition, "moving" large files is crashing my Files instance (by virtue of the program halting and can only be ended taskkill)

Given that moving data internally on ssd (likely also for @auzideals) is just a metadata change, should be instantaneous like on windows explorer, which points to an error somewhere during the r/w interaction with NTFS for large files especially (because small files move fine)

however, whether or not you're moving the files to/from a different drive or even just a different partition on the same drive, you'll still have this interaction with your local windows NTFS obviously.

hopefully this helps in your investigation

[auzideals]

Dear Support
Any progress to this issue, unable to copy my system images using Easeus system imaging preventing enjoying my subscription and usage or recommending this app
appreciate your response, hopefully this issue will be resolved

Moh