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Microsoft Windows Live OneCare Subscription - Old Version — main product image
Microsoft

Microsoft Windows Live OneCare Subscription - Old Version

★★★★★3.3 (10 reviews)

Legacy all-in-one PC security and maintenance suite with antivirus, automated tune-ups, and backup tools.

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Overview

Microsoft Windows Live OneCare was an all-in-one PC security and maintenance subscription service that combined antivirus and anti-spyware protection, a firewall manager, automated performance tune-ups, and data backup and recovery tools into a single package. During its active years, it aimed to simplify PC maintenance for home users by consolidating multiple tasks — virus scanning, disk defragmentation, unnecessary file cleanup, and file backup — under one application with a straightforward task bar icon that displayed real-time system health. A single subscription covered up to three PCs, and Microsoft provided unlimited 24/7 support via phone, email, and chat.

However, Microsoft discontinued Windows Live OneCare and transitioned its security capabilities into Microsoft Security Essentials, which eventually became the Windows Defender software built into modern versions of Windows at no additional cost. As a result, this product is entirely obsolete: its virus definitions are no longer updated, its subscription services are inactive, and it is incompatible with current Windows operating systems. This listing represents a historical product, and buyers should be aware that it provides no functional security or maintenance value today. Anyone seeking PC protection should use the free Windows Defender included with Windows 10 and 11.

Key Features

Microsoft C7S-00006 Live OneCare 1.0

Specifications

Publisher
Microsoft
Product Type
Security and Maintenance Suite (Subscription)
Protection
Antivirus, Anti-Spyware, Firewall
Maintenance Tools
Automated Tune-Ups, Backup and Recovery
PC Coverage
Up to 3 PCs per subscription
Support
24/7 Phone, Email, and Chat (discontinued)
Status
Discontinued — no longer updated or supported

Pros & Cons

👍 Pros

  • Combined antivirus, firewall, tune-up, and backup tools into a single subscription when it was active
  • Simple task bar icon provided at-a-glance PC health status without navigating multiple applications
  • Included 24/7 unlimited support via phone, email, and chat during its active service period

👎 Cons

  • Discontinued by Microsoft with no active virus definition updates, rendering its security protection obsolete
  • Not compatible with modern Windows operating systems beyond its original supported versions
  • Subscription-based model means the software is non-functional without an active (and no longer available) subscription
  • Has been fully replaced by the free, built-in Windows Defender, eliminating any reason to purchase

Frequently Asked Questions

No, Microsoft discontinued Windows Live OneCare and replaced it with Microsoft Security Essentials (now Windows Defender). This is a legacy product and no longer receives updates or virus definition refreshes.
When active, it provided protection against viruses, worms, spyware, and hackers through a combination of antivirus scanning, firewall management, and real-time threat monitoring.
Yes, it bundled automated performance tune-ups for routine PC maintenance and data backup and recovery tools that could save files to CDs, DVDs, or external drives — making it an all-in-one maintenance suite rather than just antivirus software.
A single Windows Live OneCare subscription covered up to three PCs in the same household.
This product has been discontinued by Microsoft. It is listed as an old version because it is no longer sold, updated, or supported, and its virus definitions are no longer maintained.

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