Ata Amiri asked if using two separate backup program will interfere with incremental backups.
windows maintenance - News, Features, and Slideshows
It's hard to believe, but Windows 7 is just turning one year old. And what an impressive first year the operating system enjoyed, receiving almost universal praise from critics and users alike. Of course, even the most nimble, secure, and versatile OS has room for improvement. That's why we're following up our popular "Best Windows 7 Downloads" with another assortment of essential apps and utilities, all designed to help you make your 7-powered PC even better. And believe it or not, they're all free.
Reformatting and restoring a PC is not fun--in the way spending 2 hours in the dentist's chair is not fun. You have to back up all your data (and pray that you haven't forgotten anything), reformat the hard drive, install Windows, track down missing drivers, find and reload all your software, restore your data, and pull out clumps of hair over the things you inevitably neglected to save. (Firefox plug-ins, anyone?)