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Faster Copying Large File with TeraCopy

Posted by absnet on 9 February 2010

Previously, I had no idea if the process of copying files (and folders) in the windows can be accelerated with the software. Earlier I thought that it only depends on hardware specifications (Notebook, CPU, RAM etc). But when I found free software TeraCopy, what I know so far proved wrong.

With TeraCopy, the process of copying data between hard drives in particular, from the CD / DVD to the hard drive to hard drive or flash is increase significantly.

TeraCopy is a relatively small program, useful in increasing the speed when moving or copying files, especially from one media to another media.


Some features of TeraCopy are:

Copy files faster. From several tests, copying files with TeraCopy is much faster than regular file copy. The difference can reach 20% faster. This is because the techniques used copy is different from windows.

Pause and resume copying. If you copy a file with windows, you can not stop the copying process and then resume after some time

Error recovery. If there are errors in the file copy process, TeraCopy will try to read the file several times. If not successful, the file can be ignored (skip) and the transfer process still continues.

Displaying more informative list of files, and can save the information to a text file.

Shell Integration. Once installed automatically change the copy process from windows to TeraCopy, so that we can work as usual (this feature can be in non-switch)

Unicode support. Besides supporting Windows 32-bit, it also supports 64-bit such as Windows 7.

Copy process continues despite the file can not copy.

Some Test Comparison

Here are some tests I did to find the differences between the process of copying files + folders when using TeraCopy and  with windows.

Flash Disk to Hardisk
The following test is done by copying the data from the flash to the hard drive (393 files, 34 folders, a total of about 1 GB). Test of repeated 3-4 times.

Windows : average 53 seconds.
TeraCopy : average 41 seconds

Copy in one Hardisk
Here’s a copy test data from different drives in one hard drive (the drive here from H: to drive C:).The number of files with 10 pieces each approximately 200 MB (total about 2.1 GB)
Windows: 1 minute 33 seconds
TeraCopy: 1 minute 14 seconds

16,274 copies of files, 92 folders (total size about 38 MB). Size average files 2 KB (varies about 1 KB to 50 KB)
Windows: 1 minute 18 seconds.
TeraCopy: 1 minute 18 seconds.

1 copy files with sizes of about 700 MB
Windows: 27 seconds
With TeraCopy: 19 seconds

2765 copy files with a total of about 1:25 GB
Windows 1 minute 48 seconds
With TeraCopy 1 minute 38 seconds

Hardisk to Flashdisk
391 files, a total of 1 GB of data
Windows : 3 minutes 45 seconds
TeraCopy : 3 minutes 51 seconds

From several tests above, generally copying process with TeraCopy is faster compared with the innate windows process. Exceptions occur when copying large data consisted of a small sizes, there’s no significant time differences. In addition, copy the data to Flashdisk is slower, this is because Flashdisk has low power compared to writing a hard disk, so the techniques used are not much helpful to increase the speed.


After TeraCopy installed, when you copy or move files, this operation will be replaced with TeraCopy as picture above. To restore the normal copy of the windows, but not uninstalling TeraCopy, you can set preference in TeraCopy menu. Just click TeraCopy icon, then select Preferences and then remove the option "Use TeraCopy as the default copy handler" and click OK.


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