Avast Antivirus: What a Year of Daily Use Taught Me
Why I switched to Avast
For years I ran a different antivirus and never really thought about it. Then one spring my laptop started crawling — scans taking twenty minutes, the fan screaming, and a pop-up I could not close. I spent a weekend digging through forums and reviews, and the name that kept coming up was Avast. Not because it was the loudest, but because the same people kept saying the same thing: it is quiet, it is fast, and the free version actually protects you.
So I installed the free edition on my main Windows machine and left it running for a full year. This is what I noticed, what surprised me, and what I would tell a friend who is deciding between the free and paid tiers.
What the free version actually gives you
- Real-time protection against malware, ransomware, and phishing — on by default and always on.
- A full system scan that, on my mid-range laptop, finished in under nine minutes.
- A built-in web shield that blocks known-bad sites before you even click.
- Automatic updates that run in the background without asking for a reboot.
- A clean, dark-mode interface that does not shout at you with upsells every thirty seconds.
Where the paid tier earns its keep
The free edition is genuinely good. But after a few months I started noticing the gaps: no firewall, no VPN, no password manager, and the ransomware shield was basic. The paid Premium and Ultimate bundles close those gaps. The VPN alone — with servers in over 30 countries — was worth the price for my travel. The password manager replaced the one I had been paying for separately.
Free vs. Premium at a glance
Avast Free
Real-time malware protection
Web shield
Basic ransomware shield
System & file scan
No firewall, no VPN, no password manager
Avast Premium
Everything in Free
Advanced ransomware shield
Built-in firewall
VPN with 30+ countries
Password manager & data breach monitor
Performance on a real machine
My test machine: a 2022 laptop, 16 GB RAM, a mid-range SSD, Windows 11. I ran the full scan once a week and let the real-time engine do its thing the rest of the time. Over twelve months I never once felt the antivirus slow down a game launch, a video call, or a large file copy. The background scan is the only time I notice it, and it is a five-to-ten-minute blip at most.
The one thing I wish were different
Avast is a large company and, like any large company, it collects usage data. In 2020 there was a controversy around a data-broker subsidiary (Jumpshot) that has since been sold off. Avast says the data was anonymized and never linked to individuals, and the company has tightened its privacy policy since. I mention it because it is the most common objection I see in reviews, and it is worth knowing about before you install.
Common questions
Is Avast Free really free, or is it a trial?
It is genuinely free, not a trial. The free edition has no time limit and no feature lock on core protection. The paid tiers add VPN, firewall, and password management.
Does Avast slow down my PC?
On a modern machine with an SSD, the impact is minimal. Full scans take a few minutes; real-time protection runs in the background with negligible overhead.
Can I use Avast on multiple devices?
Yes. The free edition covers one device. Premium and Ultimate licenses cover up to 10 devices across Windows, macOS, Android, and iOS.
Is Avast safe to install?
Avast is one of the most widely installed antivirus products in the world, with hundreds of millions of users. It is regularly tested by independent labs such as AV-TEST and AV-Comparatives.
Sources & further reading
Independent lab results and the vendor's own documentation.
- AV-TEST 2025 Windows reportav-test.org/en
- AV-Comparatives 2025 summaryav-comparatives.org
- Avast official product pageavast.com
Lab scores change with each product update; check the latest report before deciding.
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