Are you experiencing slow PC performance or CPU usage spikes caused by AVG Antivirus 2025? You’re not alone. Many users have reported that the latest AVG version is using excessive system resources, slowing down everything from web browsing to gaming and office tasks.

In this guide, we’ll explain why this happens and how you can fix the AVG High CPU Usage Issue without compromising your device’s security.

🔍 Why Does AVG Use So Much CPU in 2025?

AVG Antivirus performs real-time protection, background scans, and frequent virus definition updates. However, the 2025 release introduced more aggressive scanning algorithms and AI-based behavior analysis, which can cause:

• 🧠 High background CPU consumption

• 🔁 Constant background scanning

• 🗃️ Large temporary file generation

• 🔒 Firewall and web shield conflicts

✅ How to Fix AVG High CPU Usage in Windows (2025)

Here are proven steps to reduce CPU usage without disabling your antivirus:

1️⃣ Update AVG to the Latest Version

A buggy update may be the cause. To fix:

• Open AVG Antivirus

• Go to Menu > Settings > General > Updates

• Click Check for updates

• Restart your PC after update

2️⃣ Turn Off Scheduled Scans Temporarily

Scheduled scans can overlap with system tasks:

• Open AVG > Settings > Scans

• Click on Scheduled Scan

• Turn off the toggle or reschedule to a low-usage time (e.g., midnight)

3️⃣ Disable Unnecessary AVG Shields

You can safely disable some features if you don’t need them constantly:

• Go to Menu > Settings > Basic Protection

• Disable:

• Email Shield

• Behavior Shield (temporarily)

• Web Shield (if using another DNS protector)

⚠️ Always keep File Shield and Ransomware Protection ON.

4️⃣ Add Exceptions for Heavy Apps or Games

If AVG is scanning your large games or editing tools every time you launch them:

• Go to Settings > Exceptions

• Add folders or programs (e.g., C:\Games\ or Adobe apps)

• This prevents constant rescanning

5️⃣ Repair AVG Installation

Sometimes a corrupt installation spikes resource use.

• Go to Control Panel > Programs > Uninstall a program

• Select AVG Antivirus > Repair

• Follow on-screen instructions

6️⃣ Use AVG Clear Tool (Last Resort)

If the issue persists:

1. Download the AVG Clear Tool from the official site.

2. Boot into Safe Mode.

3. Run the tool to fully uninstall AVG.

4. Reinstall fresh version from AVG.com.

Note: Always back up settings or licenses before using AVG Clear.

🧊 Bonus Tip: Check Other Apps

Sometimes the problem isn’t AVG alone. Use Task Manager (Ctrl + Shift + Esc) to check which processes are using the most CPU. If multiple security tools are installed, they may conflict.

🧠 Final Thoughts

AVG Antivirus is a powerful tool, but like all software, it can sometimes cause performance issues. By tweaking a few settings and keeping the app updated, you can enjoy both top-tier protection and a smooth PC experience.

If issues persist, consider reaching out to AVG Support or a third-party tech specialist to help optimize your setup.

📞 Need Help?

If you’re still facing issues with AVG or system performance, feel free to contact our third-party independent technical support team. We offer personalized troubleshooting for antivirus, Windows errors, and slow PC performance.