Avatar of SooHow Cheng
SooHow Cheng
Flag for Singapore asked on

How to copy a single file to network drive in Windows?

This is using ms windows 10. want to copy a large file to a mapped drive z:. Tried to copy using GUi and copying dropped and have to try from the beginning again as the single post file is 25gb.
Heard that robocopy can show the progress and estimated time to complete. BTW, what is the switches?

thanks in advance
Windows 10

Avatar of undefined
Last Comment
SooHow Cheng

8/22/2022 - Mon
Michael Pfister

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
Deepak Sharma

I faced similar issues in production environments.
What works for me is to split at source end and merge at destination end using 7zip.
In your case, what was the maximum transferred size before it failed?
If it failed say after transferring 2gb, then split the original file to 1gb size,you'll get 25 files, transfer them individually as you normally do and then merge at the destination using 7zip again.


robocopy source target file /w:0 /r:0 /ZB


Nature of file, anti-virus on the server could term/kill the copy.
I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. It helped me launch a career as a programmer / Oracle data analyst
William Peck
Hello There

Well, Windows explorer does show the progress as far as I know. The problem might be somewhere else. Anyway, here is the robocopy syntax you can use:
robocopy.exe "C:\path" "\\file_server\path" /e /b /copyall /MT:64 /tee /log:c:\robocopylog.log /v

Open in new window


You might have some luck with Unstoppable Copier
SooHow Cheng

Hi all experts,

I used 7zip to split this 25gb file into 25x1gb files. After that, use robocopy to copy these files one-by-one to the destination. And finally used 7zip to "combined" these 25 pieces into 1 pc.

The robocopy command I used is "robocopy c:\temp z:\kay kay_chong.pst.001 /W:3 /R:5

Get an unlimited membership to EE for less than $4 a week.
Unlimited question asking, solutions, articles and more.
SooHow Cheng

Thanks for both experts, your suggested commands really worked