The operation of creating a file in another location that is identical to the source file. This may be in a different directory, drive, or even computer over the network.

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14
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3answers
3k views

Is it slower to copy two files at the same time than to copy one after the other? [duplicate]

My boss was saying it takes longer to copy two files at the same time than doing one and then the other because the hard drive has to keep switching the head between the two locations on disk. Is this ...
10
votes
7answers
10k views

How do I queue multiple files for copying on a Mac?

When I copy multiple files on a Mac, the system tries to copy them all at the same time. The problem is two-fold. First of all, when you select multiple files and copy them, they all go into one ...
8
votes
4answers
2k views

Can I disconnect a USB drive while copying is paused in Windows 8?

As you all probably know by now, Windows 8 consolidates all simultaneous file copy operations into one single dialog. Also, wonder of wonders, you can now pause any of the operations as well! What ...
7
votes
5answers
8k views

How can I copy a (big) directory over another changing only the files that differ?

I have directory a and directory b. They are big. b is almost identical to a. "almost" means that 4-5 files differ, and I don't know which they are. I want to copy b over a, but only the files that ...
6
votes
9answers
3k views

How do I quickly copy 900,000 files?

I need to copy some data that includes 900,000 tiny files totaling around 30 gigabytes to a windows computer. However, it needs to be able to be copied and set up in under an hour and a half, and it ...
6
votes
2answers
18k views

Why am I ask “Are you sure you want to copy this file without its properties?” when copying files from NTFS to a FAT drive?

I have an image file on my NTFS filesystem and get following message when I try to copy to my FAT32 drive: Are you sure you want to copy this file without its properties? I cant find any ...
6
votes
4answers
3k views

File copying utility like rsync with error handling like ddrescue, for data recovery from a hard drive with bad sectors or hardware failure

I have a hard drive with either bad blocks or sectors that are failing to read due to potential mechanical issues, such as a bad disk head, bad motor, or some other issue that is causing the hard ...
6
votes
1answer
274 views

What do different patterns mean in Windows 8 file copy dialog

When copying or extracting files, Windows 8 shows the chart with the speed of the operation. I noticed several patterns: Randomness, High speed at the beginning, then low speed during the most part ...
5
votes
5answers
25k views

“Invalid MS-DOS function” error message when copying a file

I have Windows 7 PC. When copying a movie file (mp4) from a DVD to my PC's hard drive, in Windows Explorer, I'm getting the error: Invalid MS-DOS function. The error message pops up, I cancel ...
5
votes
6answers
10k views

How to copy files with an option for skipping stuck files?

I have a corrupted CD from which I want to copy files. The problem is that the default Windows 7 copy utility gets completely stuck when it encounters a corrupted sector of the CD. Can you recommend ...
5
votes
1answer
2k views

Very erratic file transfer speeds in Windows 8.1

This may not have anything to do with the OS but here are the results of copying the same 20GB file between two internal SSDs and over the network. For internal disk transfers, the peak followed by ...
5
votes
4answers
483 views

why doesn't explorer copy files when control-dragged?

In one of my systems, when I drag and drop a file it does not honor the pressing of the control key. That is, when dragging in the same drive, it always moves files and does not copy them. And when ...
5
votes
1answer
1k views

File copy program that generates checksums of the data while copying too

My question in short: is there a tool that copies a file from directory A to B while, simultaneously, generating the checksum of the file it has copied/read, without doing an extra read/pass just to ...
5
votes
2answers
1k views

copy to XPMode very slow

When copying files (~1MB) from the host machine (W7 x64 Ultimate) to XPMode, the copy is very slow - ~8KB/s. Copying the file to an actual network share (using explorer running on the host machine), ...
5
votes
1answer
5k views

Automatically make or update a copy real-time on another hard drive volume whenever files are saved to a particular folder [duplicate]

EDIT: The main recommendations for Windows that were offered in answers to the question cited as the reason for closing this one as a duplicate, do not work in real-time. I've downloaded Yardis and ...
4
votes
5answers
892 views

Why every OS still can't resume file transferring? [closed]

I mean, Windows 7, Ubuntu 9.10 and Snow Leopard... All newest and top of line desktop operating system still use regular copy to transfer files, as it seems to me from experience. Instead of using ...
4
votes
4answers
23k views

How to copy files through a Remote Desktop Connection over VPN

I need to connect to a client's server through VPN. I'm using Windows 7 but the VPN from the client is compatible only to Windows XP. I installed a VM (Windows XP) on my Windows 7. After I installed ...
4
votes
2answers
2k views

How to copy files with window remote desktop?

I can do clipboard copy inside RDS client and then I can do paste on local computer. This will initiate copy process via RDS. Normal copy dialog with flying papers will appear. Is it possible to ...
4
votes
3answers
4k views

Do fast copy programs work?

Do any of the programs that purport to copy files faster than the built-in Windows Explorer file copying, really do what they claim to do? I am thinking of using ExtremeCopy and am wondering if it ...
4
votes
3answers
1k views

Multi-core and copy speed

What i want to do is to copy 500K of files. I want to copy within server from one destination to another.It includes emails mostly so many small files. Its over 23 GB only but takes so long (over ...
4
votes
2answers
631 views

Does It Make Hard Drive More Fragmented When Having Multiple Copying Dialogs?

To make copying quicker from my hard drive to external hard drive and the other way around, I sometimes have several transfers windows together transferring multiple files/folders. Does this method ...
4
votes
2answers
491 views

Should I worry about corruption during Windows file copying?

Does Windows XP do checksum validation after a file copy? If I copy all my pictures and videos from one disk to another using Windows file copying, is it a best practice to verify the checksums of the ...
4
votes
2answers
2k views

In what order are files and directories copied when using Linux cp -R?

If I execute the following command: cp -R /myfiles /mydestination If myfiles contains several sub-directories and files, in what order will they be copied? For example, directories might be named ...
4
votes
1answer
3k views

Why is transfer between two SATA HDDs so slow?

I have plugged in my Macbook Pro's SATA hard drive into my PC, and downloaded MacDrive in order to access it. I'm trying to copy about 100GB onto my PC's hard drive which is also SATA, the slowest ...
4
votes
1answer
305 views

Can you move/copy a multipart 7z file while it still is compressing?

If you are compressing a 7zip archive and creating split archive, do you need to wait for the entire compression process to complete before you start copying the completed pieces out of the folder? ...
3
votes
3answers
612 views

How to copy a file with a $ (dollar sign) in the name from one folder to another in Linux?

I have a file which I want to copy from one directory to another directory. Suppose that's the file some.txt to copy from folder1 to folder2 cp -r some.txt /folder2 I am able to copy this file but ...
3
votes
4answers
528 views

Can a file being copied over my LAN be sniffed?

I'd like to know if a file (PDF, JPG, or whatever) that I copy with .NET code between two computers in my LAN can be easily sniffed and obtained. If so, what would it take to do it? How trivial would ...
3
votes
3answers
78k views

How to move emails from outlook express to outlook on a different computer?

I have an old computer with thousands of emails under Outlook Express on an old Windows XP PC. I'd like to move them to a newer Windows 7 PC which uses Outlook 2010. What's the best way to do this? ...
3
votes
3answers
30k views

Is there a way to append files efficiently using the DOS copy command?

Using the DOS copy command syntax to concatenate files: copy file1.txt+file2.txt all.txt I know I can do this... copy file1.txt+file2.txt file1.txt Is this efficient? Is it doing what I'm ...
3
votes
6answers
4k views

Can no longer copy or move files

I can no longer copy or move files with Windows Explorer. This affects local drives as well as network drives. Neither Ctrl+C, Ctrl+V nor drag and drop works. I don't get any response from Explorer; ...
3
votes
3answers
6k views

How to copy a damaged file? (windows 7)

I am trying to copy a 1GB .vob file, and in the middle of copying it says "can't copy the file - retry?" I can open the file and play it (at least part way). I imagine the file is damaged, is there ...
3
votes
2answers
4k views

TeraCopy error message: “Operation did not complete … file contains a virus”, yet my antivirus did not prompt me about any detected viruses

When I was moving a certain file, TeraCopy outputted this error message: "Target: Operation did not complete because the file contains a virus." Screenshot: My antivirus (avast!) did not alert me ...
3
votes
3answers
2k views

File corruption after copying files in Windows 7 64 bit using two methods

I have 5000 pictures and other files in a directory taking up 35 GB. I want to duplicate this directory. Method 1: I do a simple copy and paste of the directory in explorer. I have the habit of ...
3
votes
1answer
4k views

Copying folders in Windows 7 without changing created/modified date?

When you're copying a folder with subfolders in Windows 7 file explorer (and possibly in earlier versions of Windows) all subfolders get their "date created" and "date modified" changed to the current ...
3
votes
1answer
469 views

How to preserve file-create-timestamp while copying files on OS X from command-line?

On OS X when you a copy a file using Finder, the target file has the same creation and modification times as the source file. However when you do so using cp in Terminal both creation and ...
3
votes
1answer
348 views

Change the default 'naming scheme' for copying files

When I copy a file, name.txt, in Windows Explorer and paste in the same directory, a new file appears. Its default name is name - Copy.txt. Is there a way to customize the default name for a new ...
3
votes
2answers
134 views

Manually place file at end of partition

I have an 80GB disk, which has a 50GB VM disk image on it. This image is currently in 220,000 fragments, and is killing my drive's performance (and preventing a defragmentation). I'd like to copy it ...
3
votes
1answer
38 views

Copying folders with cygwin

The folder produced by cp -r myfolder myfolder2 is marked shared as reported by "It is shared with other people. Are you sure that you want to delete it?" dialog in windows when I try to delete the ...
3
votes
1answer
648 views

How does one troubleshoot Windows hanging copying large files from external HDDs?

When I copy large file (for example over 4GB) from external WD MyBook USB 3.0 HDD to internal SATA2 HDD all of Windows just freezes. Copying files of any size on internal HDD is fine. Today I copied ...
2
votes
3answers
2k views

Why does copying the same amount of data take longer if spread across many separate files?

I noticed that copying 24Mb worth of data from one folder to another took about 30 seconds because (I'm assuming this is the reason) it was over 1,000 separate files. Copying 24Mb shouldn't take so ...
2
votes
3answers
109 views

Copy a folder using the command line?

How can a folder be copied using the cmd.exe shell? Using Explorer, this is easy to do. Right-click the folder to copy, drag it to the destination folder, and then select "Copy here." Suppose we ...
2
votes
2answers
468 views

Copy all files from a directory tree into one directory

I'm running on Windows but have Cygwin so Windows or simple Linux versions are both OK. My camera-phone stores images in a directory tree based on date, but still appears to name each file uniquely. ...
2
votes
1answer
6k views

Easiest way to copy a directory recursively creating 0-length files

I need to copy a file/directory structure recursively but without copying file contents (creating 0-length files). Is there any way to do that without custom scripting? Windows 7
2
votes
3answers
881 views

What's the cause of the lag when I try to copy 200 GB of file?

Why is my computer lagging everytime I try to simply copy (or move to another disk which I think is the same as copying anyway) 200 GB of file from my C:\ drive to the E:\ drive (external hard disk) ...
2
votes
3answers
2k views

Copy hundreds of thousands files Mac to NAS

I'm trying to transfer my Aperture library to the NAS. It contains few hundred of thousands of files (quite small ones). After OS X finishes copying the big files, the estimated time of the copy ...
2
votes
2answers
2k views

How to disable time calculation when copying files in Windows 8

When I copy large files on Windows 8, it always takes a long time to calculate the time remaining. How can I disable this feature?
2
votes
1answer
7k views

File copy stops to ask about properties that can't be copied to new location [duplicate]

I'm copying files from my Windows Home Server (v1) to a new Windows 8 box. So far when copying certain music and movie files the copy process has stopped to ask if I want to continue on because some ...
2
votes
2answers
2k views

SSD Copy gets slower and slower with large files

I have a OCZ SSD drive, and I was duplicating a 16GB VM on the drive and noticed when I started the copy it was working at approximately 180MB/s, by then end of the copy this had dropped to ...
2
votes
1answer
377 views

Why might be file copying on Windows Explorer much slower than Command Prompt

When I copy a file in command prompt, it occurs instantly. But when I copy a file inside Explorer of Windows 7, it waits around 3-10 seconds before starting the copying process. Also the icons of ...
2
votes
1answer
1k views

How to copy information from 1 .PST file to another

I have been using an Outlook Data file for a long time now and have many calendar events, tasks, notes, and contacts. I recently got an exchange account set up and would like to know if there is a way ...