[Webinar] Learn how to a build a cloud-first strategyRegister Now


Backing Up files to external hard drive without repeating same files again

Posted on 2007-07-28
Medium Priority
Last Modified: 2013-11-14
How can i continue to back up files onto my external hardrive without having to copy over the same thing over and over again? I usually just select all the files in my documents and then copy and paste into the external hard drive, but i have to wait for it to copy over the same files that have not been changed. Can the computer tell what files have been changed or modified and only copy those over?
Question by:rattleme
  • 2
LVL 63

Accepted Solution

SysExpert earned 1500 total points
ID: 19586563
Use a bactch file

See the xcopy command ( which can use the archive bit to see if a file has changed )
OR THE MORE ADVANCED Robocopy program available on the WIndows resource kit CDs and on the MS site.

I hope this helps !
LVL 93

Expert Comment

ID: 19587645
LVL 63

Expert Comment

ID: 19588312
Another  OPTION IS THE FREE Win XP syncToy


Other great utils are there also.

LVL 24

Expert Comment

by:Luciano Patrão
ID: 19589535

Use robocopy.exe to do this


This an script example how to run robocopy.exe and update only the new files.

If you put this scritp in the schedule,  lets say, every 3 days of the week, you have on your destination copy only the new files.

robocopy will copy the folder/files and users security attributes

If you want to copy also the share folder, and its security attributes, use Permcopy

Hope this can help you



Featured Post

Microsoft Certification Exam 74-409

Veeam® is happy to provide the Microsoft community with a study guide prepared by MVP and MCT, Orin Thomas. This guide will take you through each of the exam objectives, helping you to prepare for and pass the examination.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

With so many activities to perform, Exchange administrators are always busy in organizations. If everything, including Exchange Servers, Outlook clients, and Office 365 accounts work without any issues, they can sit and relax. But unfortunately, it…
MS Outlook undoubtedly is the most widely used email client.Its user-friendliness, cost effectiveness, and availability with Microsoft Office Suite make it the most popular email application.  Its compatibility with Microsoft applications like Exch…
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…
This tutorial will walk an individual through setting the global and backup job media overwrite and protection periods in Backup Exec 2012. Log onto the Backup Exec Central Administration Server. Examine the services. If all or most of them are stop…
Suggested Courses

864 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question