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BullGuard Antivirus Review

Eddy Wright, Editor Overall Rating: 8.5 / 10

Overview

BullGuard Antivirus was an award-winning consumer security suite best known for its Game Booster feature — a technology that allocated system resources to games and full-screen applications to ensure zero-lag performance during gaming sessions. Founded in Denmark in 2001 and launched in 2002, BullGuard built a loyal following particularly among PC gamers, and was independently certified by AV-Comparatives with Advanced+ ratings for its protection capabilities. The software offered a clean, accessible interface with strong real-time protection and an industry-leading spam filter.

IMPORTANT UPDATE (2022): BullGuard was acquired by NortonLifeLock (now Gen Digital) in January 2022 and has since been discontinued. BullGuard products are no longer available for new purchase or renewal, and technical support for the product ended in January 2023. Existing BullGuard users were encouraged to transition to Norton 360, which offers comparable and in many cases superior features. If you are a former BullGuard user or are researching alternatives, we recommend reviewing our Norton 360 or Bitdefender Total Security listings.

  • Features & Functionality 8.0
  • System Speed 8.5
  • Ease of Use 8.8
  • Help & Support 8.5
  • OVERALL RATING 8.5/10.0

Features

  • Real-Time Antivirus Protection (historical)
  • Game Booster (historical)
  • Behavioural Detection Engine (historical)
  • Spam Filter (historical)
  • Identity Protection (historical)

Support

  • IMPORTANT: BullGuard support ended January 2023
  • For assistance, visit Norton support at support.norton.com
  • Knowledge Base (archived)
  • Community Forum (archived)

Software is compatible with the following operating systems:

  • Windows 10 & 11 (historical — product discontinued)
  • macOS (historical — product discontinued)

Pros and Cons

Pros of BullGuard

  • Award-winning Game Booster minimised performance impact during gaming
  • Strong independent test results from AV-Comparatives (Advanced+ rated)
  • Clean and accessible interface suitable for all skill levels
  • Generous subscription tiers covering multiple devices

Cons of BullGuard

  • Product discontinued as of 2022 — no longer available for purchase
  • Technical support ended January 2023
  • No longer receives security updates — not safe to rely on for protection

Ease of Use

BullGuard featured one of the most accessible interfaces of any consumer antivirus of its era. The three-panel dashboard — Security, Backup and Performance — gave users a clear overview of their device's status without overwhelming them with technical detail. Running scans, configuring the spam filter and activating Game Booster were all achievable with minimal clicks. The Game Booster was particularly seamless — it detected full-screen applications automatically and adjusted resource allocation without user intervention. IMPORTANT NOTE: This product is discontinued and should not be installed or relied upon for security purposes as of 2023.

Reliability

During its active life, BullGuard demonstrated strong protection capabilities. AV-Comparatives awarded BullGuard its Advanced+ certification — the highest tier — in multiple annual test cycles, recognising excellent malware detection and removal rates. The behavioural detection engine was effective at identifying previously unseen malware variants.

However, with security updates ended since January 2023, BullGuard no longer provides effective protection against current threats and should not be used as an active security solution. Former users are strongly advised to switch to a maintained product such as Norton 360.

Customer Support

BullGuard's customer support infrastructure has been fully decommissioned. The BullGuard website and support portal were taken offline following the completion of the NortonLifeLock acquisition process. Former BullGuard customers who need assistance with their devices should contact Norton support directly at support.norton.com, where the support team is familiar with BullGuard migration queries.

Value for Money

As a discontinued product, BullGuard subscriptions are no longer available for purchase. If you encounter websites offering BullGuard at discounted prices, these are likely fraudulent — do not enter payment details. For comparable protection at a similar price point, we recommend Norton 360 Standard (from $29.99/year) or Bitdefender Total Security (from $49.99/year for 5 devices).

Features

  • Game Booster. BullGuard's flagship feature, which detected when a game or full-screen application was running and automatically adjusted CPU, memory and background process priorities to deliver maximum gaming performance while maintaining active security scanning.
  • Behavioural Detection Engine. Monitored application behaviour in real time to identify suspicious activity patterns associated with new and unknown malware, providing protection against zero-day threats not yet in the signature database.
  • Spam Filter. One of the most effective spam filters in the consumer antivirus market, compatible with major email clients including Outlook, Windows Live Mail and Thunderbird. Consistently blocked over 98% of spam in independent tests.
  • Identity Protection. Monitored personal information and alerted users to potential identity theft risks by scanning for compromised credentials in breach databases.
  • Safe Browsing. Blocked access to known malicious URLs, phishing sites and drive-by download pages before they loaded in the browser.

The Bottom Line

BullGuard Antivirus was a well-regarded security suite that combined strong malware protection with the unique and genuinely useful Game Booster feature. Its acquisition by NortonLifeLock in 2022 and subsequent discontinuation was the end of a respected 20-year run in consumer cybersecurity. If you are looking for current, actively maintained protection, we recommend Norton 360 — the product that BullGuard users were transitioned to — or Bitdefender Total Security, both of which offer superior or equivalent features with full ongoing support.