Automatic Incremental Backup in Windows 7

Written by:  • Edited by: Lamar Stonecypher
Updated Nov 21, 2009
• Related Guides: Windows 7 | Hard Drive

In Windows Vista, it was necessary to set up a schedule in Task Scheduler to automate incremental backups, and even worse, full backups were not available in the Home versions of Vista. Windows 7 brings full-disk backup to purchasers of all versions. Let's try it out!

Windows 7 offers vastly improved full-disk backup and emergency restore for purchasers of all (retail) versions, including those getting upgrades and those getting full new installations.

In Windows Vista, only users of the Professional, Ultimate, and Enterprise versions were able to do full-disk OS and data backups. Users of the lesser versions of Vista got lesser versions of Windows Backup. It only backed up user data, not executable files and not the OS itself. That version could not provide a restorable full-disk "image" of the hard drive and was not much use at all.

That's all changed in Windows 7. Buyers of all versions get the same full-disk and OS backup to external and internal hard drives and to CD/DVD. Professional and Ultimate users still get a perk- they can back up and restore to a network.

Since local backups (and Windows 7 Home Premium and Professional) will be more common, that's what we'll address here.

Setting Up for the First Backup

The best target device for your backups is an external hard drive, especially as these have come drastically down in price in the last year or so. I suggest getting one as large as, if not larger than, your current hard drive.

To start setting up Windows 7 Backup, press the Windows button or click the Windows 7 start orb. Type in "backup" and it should offer you "Backup and Restore" at the top of the list. Note that it's also offering "Restore data, files, or computer from backup," "Create a restore point," and "Backup your computer." This is nicely improved usability from our friends at Microsoft.

This will also open the Backup and Restore Center, which will warn you that "Windows Backup has not been set up" and "Windows could not find a backup for this computer."

Backup and Restore Center
click to enlarge

Clicking "Set up backup" will start Windows Backup. After scanning the storage devices on the PC, it will ask you to "Select where you want to save your backup," and the most likely target will be highlighted.

In order of preference, Windows Backup will choose an internal hard drive, an external hard drive, a DVD/CD, and an external flash drive. A complete backup of a Windows installation is called an "image." Not too many folks will have a Flash drive capable of saving a complete image, but some 128 and 256 GB models do exist on the market now.

Select Backup Target
click to enlarge

Windows Backup then asks what you want to back up. The choices are "Let me choose" and "Let Windows choose." Whole-disk backup is automatically included (if adequate disk space is available) when Windows chooses, but it's also an option when the user makes the selection.

Set Up Backup
click to enlarge

Creating a System Repair Disc

Before continuing, it's a good idea to create a bootable restore disc, just in case you need to actually use the disk image to restore your computer someday.

This ability was completely lacking in Vista, leaving many folks scratching their heads wondering how to create a bootable disk in order to use the backups they were able to create. Oddly, this capability was removed from Vista sometime during the beta period. In Windows 7, it's back.

To create your bootable repair disc, go back to the Backup and Restore Center and click "Create a system repair disc" in the left-hand column. Be sure you have a writable CD or DVD in the drive, and then make sure it's showing your drive and click "Create disc."

A default installation of Windows 7, by the way, comes with a bootable emergency repair disc image on the hard drive. If Windows Backup finds it, it will use it and the process will be relatively quick. If the image is not found, it will ask for a Windows 7 install DVD. Be warned.

Creating Bootable Repair Disc
click to enlarge

Next: Running the First Backup, Setting Up Automatic Incremental Backups, and Restoring Discs, Folders, and Files

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Comments

Showing all 6 comments
 
Brian Hawthorne Apr 8, 2011 4:17 PM
Strange settings
Apparently, there is a way of forcing always incremental backups. See the post at http://codydunne.blogspot.com/2010/10/fullincremental-backup-cutoff-in.html

So, if you want it to do all incrementals, set the key AutomaticFullBackup\Enabled to 0. If you want to do occasional full backups, set the key AutomaticFullBackup\Enabled to 1, the AutomaticFullBackup\TimePeriodInDays to 30 or 60 or 180 or whatever you want, and the key OlderFilesSizePercentage to 100 to make sure it doesn't sneak in a full backup because it thinks more files have changed.

Of course, I can't guarantee this will work, as I am still trying to work it out myself. There is also a known bug with media files in the Public folder and all sorts of other problems.
Tom Jan 31, 2011 10:51 AM
Incremental backup
They should do incremental backups. It is important that the disk to which you are backing up is formatted as NTFS, with FAT32 it is not possible to do incremental backups (this requires hard-links I think, which are impossible with that file system).
MagnusG Nov 26, 2010 11:57 AM
Windows7 backup is crap
I learned from here:
http://social.technet.microsoft.com/Forums/en-US/windowsbackup/thread/3e08fc65-52f5-48ca-ae13-321cdfc44fbd
, that windows7 backup is extremely slow for first time backup, to the degree that people find unusable...
I think the author of this article never tested his advices himself...:-(
I have gone over to use a bundled backupsoft that was installed in my Acer.
It works at least.
Model299 Sep 25, 2010 4:15 AM
It seems to backup incrementally for a week.
Windows will run file backups for awhile, and I have the system set to back up the files I want with enough space. However, it seems to want to take a completely new backup every week instead of an incremental backup. I imagine the system images are not incremental either they store a complete image, every time I've used it, it replaced the old one. Which is crazy anyway I have 2 terabytes of data on the system so that means to keep everything I need an array of disks bigger than 2TB to include a system image, which is not incremental, and needs to be replaced every week, used daily.
Brian Jul 1, 2010 1:06 AM
not incremental
Agree that it's not incremental. The first 2 backups were the same size, and there wasn't enough room to finish the third.
mtb May 8, 2010 12:20 AM
Incremental backup?
It appears windows 7 is NOT incremental. Repeat, NOT.
IN order for me to back up I MUST delete the previous back up to ensure there is enough room.
So unless there is a strange settting I cannot find, windows 7 is NOT incremental when backing up.
 
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