issue copying or moving large files win 11

needlenoses · Dec 15, 2025

Ok I take it that robocopy command structure is built into win 11. Saved the syntax info to have a go at it. Only using defender at the moment so I will pause that for a test today. Man has to work. Will look into explorer ++.

You are correct; it does appear that something is looking at the file or the command itself. Sometimes when command just fails the video screen goes black and then resets back to my desktop. Weird !!

Just turned off defender completely and issue persists; keep it mind that all my commands are done from the right click options, not by typing in command lines. Have done some things from command prompt but my experience id quite limited. Going to write out a couple of command prompts for robocopy and see what I can do.

maur0 · Dec 15, 2025

https://download.explorerplusplus.com/stable/1.4.0/explorerpp_x64.zip

If it's still slow, use the Windows 3.1 file manager

https://github.com/microsoft/winfile/releases/download/v10.4.0.0/Winfile_v10.4.0.0.zip

tell us how the speed of the 2 explorer++ and the file manager of windows 3.1 was

needlenoses · Dec 15, 2025

Question; is "explorer++" a command line ; otherwise how do I run it. Interesting I had a copy of the same large file sitting one on the desktop the other in a folder off the desktop. This time the copy in the folder deleted just fine; even gave me the ARE YOU SURE question; the copy on the desktop just sat for about 5 minutes and then I got the question. This was done while in explorer. When I get a chance, I try something else throughout the day. Not looking forward to doing what I so with command prompts. All of this is being done on my 1T SSD drive rather than either of the two HHD drives.

Rollback_Jockey · Dec 15, 2025

Have you checked for disk corruption?

abactuon · Dec 15, 2025

needlenoses said:
"Calculating"

I haven't studied Windows (and I don't want to).
It seems to me that at this stage, the file isn't copied, but rather disk space is allocated.
Various algorithms can be used.
This can take some time, depending on the file size.
The most expensive is "prealloc."
It should also depend on the file system (it's better to use NTFS), how much space remains on the disk, fragmentation, and whether it's SSD or HDD.

needlenoses · Dec 15, 2025

using NTFS; will look into Samsung magician for a way to check the SSD; if it was in some sort of trouble, I would gladly replace it tomorrow.

needlenoses · Dec 16, 2025

Doing a full diagnostic scan on my primary SSD;

will likely take a while.

Dan Dare · Dec 16, 2025

needlenoses said:
Doing a full diagnostic scan on my primary SSD; View attachment 157137will likely take a while.

Also remember to run Windows 11 built-in drive optimizer.

Optimize and Defragment Drives in Windows 11

This tutorial will show you how to optimize and defragment drives in Windows 11. Optimizing your drives can help your PC run smoother and boot up faster. Windows 11 includes Optimize Drives that will automatically retrim a SSD or defrag a HDD as needed. Retrim = Generates TRIM and Unmap hints...

www.elevenforum.com

needlenoses · Dec 17, 2025

Taking me some time but trying. Just finished scanning both of my SSD drives using Samsung magician; also ran chkdsk on both 4T HHD's. Will do the other checks tonight. I really want this solved.

Thanks to all so far.

needlenoses · Dec 17, 2025

Forgot; my PC is set up to auto-optimize once a week on all drives. Cool!

needlenoses · Dec 19, 2025

Haven't quit!! Just doing pre-Christmas stuff. Working with Win File but struggling a bit getting around in the TREE. Like finding folders under desktop. And what's with explorer ++

maur0 · Dec 20, 2025

needlenoses said:
Haven't quit!! Just doing pre-Christmas stuff. Working with Win File but struggling a bit getting around in the TREE. Like finding folders under desktop. And what's with explorer ++

new solution in windows 11 24h2 25h2 enable new driver nvme native

Code:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Policies\Microsoft\FeatureManagement\Overrides]
“735209102”=dword:00000001
“1853569164”=dword:00000001
“156965516”=dword:00000001

needlenoses · Dec 20, 2025

So, I will back up the registry; but what is this above supposed to accomplish.

needlenoses · Dec 21, 2025

worked on 3 large files this morning; no change in slow outcome. Have an idea; i also have an older win 11 laptop the I keep for some reason. Used it for traveling south for the winter but Trump has ruined that idea for sure. Will fire it up, do the updates and do the same process on that to see what happens. Running out of things to try.

Rollback_Jockey · Dec 21, 2025

needlenoses said:
So, I will back up the registry; but what is this above supposed to accomplish.

It's something that's not very effective right now. I suggest you avoid it.

needlenoses · Dec 21, 2025

Ok will forget it; have dabbled in the registry a bit but on specific issues and specific software. Thanks for input!!

needlenoses · Dec 27, 2025

Back after Christmas; situation the same; got my old laptop (win 11 ) up and running and transferred one of my big files onto the 500 SSD. Moved it all over the place with no issues at all. Couple of more things to try. Another thing; if I try to transfer a herd up mp4 files to another drive; same issue; really slow.

Ben Myers · Dec 27, 2025

As mentioned by another poster, use drag and drop. Start File Explorer, find the file or folder you want to copy or move in the right window, then find the destination folder in the left window by clicking on the arrows to the left of the drives and folders. Don't highlight the folder and don't try to use Quick Access unless the destination drive or folder is already there. When you are ready to copy or move the file, right-click it and while holding the right-click, drag it to the destination folder in the left window and release the right-click. You will be given the choice of copy or move.

Ben

needlenoses · Dec 27, 2025

I have tried that with various results; just did it again; works fine with COPY but not with the MOVE command. File resided in a folder off of the desktop and was sending to a folder on my D drive (SSD). Either SSD doesn't matter which drive.
When I get my vpn working on the laptop I will try the complete process.

Ben Myers · Dec 27, 2025

When you right-click and drag to the left window, make sure you are hovering over the destination folder. If you're not sure or it just doesn't look right, release the right-click, click "Cancel" and try again. File Explorer sometimes expands folders in the left window automatically and when this happens, you have to scroll down and find the destination folder again.

Ben

issue copying or moving large files win 11

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