Software to backup data and files on a Windows computer [closed]

I use SyncBack by 2BrightSparks. It has a wide range of functions, including backing up to a network drive, and synchronising two folders. The free version has been sufficient for my needs.

I like the built in backup system in Vista business. Simple, straight forward, no issues yet.

I've tried Acronis True Image Workstation (it seems that this year they've renamed the product) and found it to be very, very good. It creates images of drives, or backups of folders, it's very customizable at both backup time and restore time. You can mount drive images and access them as normal. The only "downside" is that it's not free :-)

"I use Mozy. They have a free service level that offers up to 2GB of storage (you can increase that by recommending other users to the service using a referral code they provide). They also offer an Unlimited storage level for $4.95 a month. I've been using them to backup over 100GB of data for the past few years. IMHO the price is more than acceptable for the security and quality of service they provide.

My favorite parts:

Backup Sets. You give it a list of file extensions (file types) and it will automatically find and back them up anywhere they appear on your computer. Want to make sure all your Office Documents or photos are always backed up without having to remember to put them in any particular place? This is it.
Windows Integration and ""Shadow Copy"". Mozy offers a ""shadow copy"" like function that saves the past 3 versions of every file backed up. Their integration with Windows is such that you can right-click on a file to gain access to those ""Previous Versions"" and view/revert-to any one of them... anytime.
Speed. Assuming of course that your internet connection has good upload speeds, their servers can keep up.
Stability. I've been running Mozy for years. I can't remember a single time I noticed my computer behaving slower or unreliable in anyway due to their software. Nuff' said.

... they also have Mozy Pro for businesses."

Microsoft SyncToy; use Echo mode to do easy incremental backups, and it's free.