Download Free Antivirus for Windows 2018

Real-time cloud scanning

Our Protection Cloud is our early warning system, which analyzes unknown files in the cloud –
anonymously – from millions of users, to protect you from threats as they emerge in real time.

A suspicious file is detected

The file's digital fingerprint is sent to the cloud

The file is checked in real time against our database

The file is identified as either safe or infected

The information is returned to the device

Free or premium protection?

Your antivirus, your choice

Free Antivirus for Macfor PC

Next-gen antivirus protection
Stops ransomware
Guarantees your privacy
Offers community support

Free download Free download Learn more about Free Antivirus 2018 > Free Forever

Antivirus Pro for multiple devicesfor PC

Next-gen antivirus protection
Stops ransomware
Guarantees your privacy
Offers phone & email support
Protects 5 devices with 1 license
Secures your shopping/banking
Protects your network & email
Device control
No ads

Get Pro | $44.99 1 year / 5 devices
(PC, Mac & Android) Learn more about Antivirus Pro 2018 > Only $44.99

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Get Pro | $44.99 1 year / 5 devices (PC, Mac & Android)

Full features and system requirements

Antivirus Scanner

Award-winning protection from malware (viruses, Trojans, worms, etc.)

Browser Tracking Blocker*

Quietly prevents companies from monitoring what you do online.

Protection Cloud Technology

Scans unknown files in real time for malware and exploits.

Safe Browsing*

Blocks harmful websites before they load.

PUA Shield

Identifies potentially unwanted applications hidden within legitimate software.

Price Comparison*

Saves you money while shopping online.

*These features are included with Avira Browser Safety – a browser extension for Chrome, Firefox, Opera and Internet Explorer.

System Requirements

You really don’t need much! Here are the essentials:

A PC running Windows 7 or higher (with Service Pack 1 and the latest updates)
2 GB of RAM, over 2 GB of hard disk space, and an internet connection

For the tech savvy, we’ve prepared a full rundown of the specifications.

See full details >

Operating Systems:

Microsoft Windows 7 Service Pack 1 or higher with the newest updates, hotfixes, and service packs installed

RAM:

2 GB of RAM or more

Disk space:

Minimum 2 GB of free disk space (additional space for temporary and quarantine files needed)

CPU Type:

Intel Pentium 4 / AMD Athlon 64 Processor or faster (with support for the SSE2 instructions set)

Browser:

Internet Explorer 8 or newer

Additional requirements:

To install, you’ll need administrator rights, an internet connection, and a web browser. For automatic antivirus updates and optimal malware detection, you’ll need an internet connection.

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