Full+Differential backup for virtual machine

I'm looking for a better backup  solution for my Virtualbox and Hyper-V VMs. I do full backup weekly and snapshots, but I need a way to fully recover VMs at the point of failure, maybe 1 or 2 day data loss is acceptable. I think snapshot is not backup, it just saves system state(?).

Is there any affordable backup solution which does both full and differential backup of VMs online or automatically stop/backup/restart VMs over night daily?

Currently, I'm backing up virtual disk files, snapshots, and data file backup, it's too much, I think....

Host: Windows 7 and windows 2012
Guest: Windows XP, 2003,2008
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crcsupportAsked:
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization ConsultantCommented:
Snapshots are NOT Backups.

see my EE Article, Step by Step Tutorial Instructions with Screenshots

HOW TO: VMware Snapshots :- Be Patient

Virtualbox is an awkward Type 2 Hypervisor, because the only sure method to backup Virtualbox VMs, is to power off the VM, and Backup the Entire VM folder.

I would recommend the following for Hyper-V

1. Windows Server Backup (free!)

2. Altaro Backup
http://www.altaro.com/hyper-v-backup/download-free.php (free edition for 2 VMs!)

3. Veeam Backup and Replication
http://www.veeam.com/vm-backup-recovery-replication-software.html
AbhilashBloggerCommented:
This is another solution you could look at
http://www.shadowprotect.com/shadowprotect-backup-software-downloads

They specifically mention that they support Virtual box.
Worth taking a look. Also, the above link gives you a 30-day trial to test the product.
Aditya AroraNetwork & Hardware Commented:
you can try fbackup. its free and do almost all what you required.

http://www.fbackup.com/

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crcsupportAuthor Commented:
Happy New Year, all!!!
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