Today marks the launch of Windows Live OneCare 2.0, Microsoft's 2nd revision of its all-in-one home computer management offering, combining anti-virus, firewall, spyware protection and backup software all into the same application.

So what's new in this version?  According to a new OneCare 2.0 Reviewer's Guide, quite a bit:

Security and Protection Technologies

·         Wi-Fi connection security (New)

·         Real-time and scheduled anti-malware scanning

·         Two-way managed firewall with automatic policy updates

·         Internet Explorer^® 7 Phishing Filter integration

·         Microsoft Update integration

·         OneCare advisories

PC Performance Tuning and Optimization

·         Proactive fixes and recommendations for PC health (New)

·         Start-time optimizer/turn off unused programs (New)

·         Automatic disk defragmentation and hard drive cleanup

Data Backup and Restore

·         Centralized backup for multiple local networked PCs (New)

·         Online backup for photos (available at added cost) (New)

·         Full and differential backups for key file types, including music, photos and financial documents

·         Backs up to CD, DVD, external hard drive, local network drive and USB-connected devices

Network and Multi-PC Management

·         Multi-PC management and monitoring (New)

·         Automatic printer-sharing configuration (New)

·         Firewall Connection Wizard for complex connections

Reporting, Licensing and Support

·         Monthly report of service and results (New)

·         Free version upgrades over the course of the 12-month subscription

·         Telephone, chat and e-mail support

·         Freedom to install OneCare on up to three PCs

OneCare is available in 17 countries and 7 languages, at http://onecare.live.com (unlike zuneoriginals which is well, disappointing for internationals).  Finally if you have any problems with the new release don't forget the official Windows Live OneCare forums.