Home » Questions » Computers [ Ask a new question ]

Does built in Windows 7 backup perform differential (incremental) backups?

Does built in Windows 7 backup perform differential (incremental) backups?

I have win 7 scheduled to backup every Sunday, it's only looking at one of my drives at the moment and is backing up to an external HDD. It's a 1TB drive so should take quite a while to fill but the amount of time the backup takes makes me think its taking a fresh copy every time.

Asked by: Guest | Views: 29
Total answers/comments: 1
Guest [Entry]

"Windows 7 Backup is a block based file backup.

This means each block in a file is examined and if a duplicate already exists on the last backup, and this is the important bit, even if from a different file, that block is not saved. Quite good :)

The first backup is always a full backup. The following backups will only save changed blocks. Disadvantage is you cannot manage your backups individually."