Antivirus installation in Lyon

We see plenty of badly protected machines, and rarely because the antivirus was poor. The real causes lie elsewhere: two antivirus products cancelling each other out, a subscription that expired eight months ago, or a suite the user switched off because it slowed everything down. Configuration matters more than the brand.

Do you really have to pay?

Let us answer straight, including when it means selling less. For home use, Microsoft Defender is enough in the vast majority of cases. Built into Windows, free, updated automatically, it scores comparably to commercial products in independent tests, without slowing the machine down or showing sales pop-ups.

A paid suite is justified in specific cases: a work machine handling sensitive data, a business fleet needing central administration, a need for extra features that are genuinely used - parental controls, a password vault, reinforced banking protection. We will help you decide based on how you actually work, not on a sales pitch.

The most frequent mistake: two antivirus products

A classic. The antivirus that came with the machine expires after a few months, the user installs another without uninstalling the first, and the two spend their time scanning each other. The result: a slowed machine, contradictory alerts, and protection that is worse than with one alone.

One active antivirus, always. One of the first things we do is clean out the remains of previous ones - because a normal uninstall often leaves components active, and vendors provide dedicated removal tools for exactly this reason.

What we configure

• A single active antivirus, with previous ones cleanly removed.
• Automatic updates, signatures and engine, with nothing for you to do.
• A scheduled scan at a time when the machine is on but not busy.
• The offline scan, that built-in Windows tool almost nobody uses and which catches what a normal scan misses.
• Ransomware protection, switched off by default in Windows even though it is built in. See ransomware protection.
• The firewall, with the right permissions for your business software and your network printers.
• An ad blocker in the browser, which sharply reduces exposure since most traps arrive through advertising networks.

What an antivirus does not do

This is important to understand, and rarely said. An antivirus does not protect you when you type your password into a fake login page. It does not protect you when you yourself grant remote control to a fake technician. It does not recover files encrypted by ransomware. And it does not replace a backup.

Most of the incidents we handle exploit no technical flaw at all: they exploit urgency and trust. That is why we always spend a few minutes explaining the signs that matter - our article on securing your computer sets them out.

For a business

The needs change scale. A central administration console lets you see at a glance which machines are up to date, which have detected something, and which have a subscription about to expire. Without one, across ten machines, nobody really knows where things stand.

To that add email protection, often the real way in, and the question of backups - which remains the only genuinely reliable safety net. See IT security for small businesses.

Slow machines and antivirus

A frequent complaint: “ever since I installed the antivirus, everything drags”. Sometimes it is true, particularly with certain heavy suites on older machines with a mechanical disk. The right answer is not to switch protection off, but to choose a product suited to the hardware - and often to deal with the real cause of the slowness, which lies elsewhere. See slow computer.

Where the work happens

Installation and configuration work very well by remote support, in around thirty minutes. For a business fleet, we come on site.