13 best antivirus software with offline updates [2021 Guide]

Ivan Jenic
by Ivan Jenic
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  • Keeping your antivirus software updated is crucial to ensure optimum protection.
  • The list below will be showcasing antivirus tools that can be updated using offline updates.
  • This list is just one of many included in our dedicated Cybersecurity Hub, so check it out.
  • If you want to learn more about this type of software, visit our Antivirus page.
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Today, we will be discussing some antivirus with offline updates.

Antivirus signatures need to be up to date in order to prevent or remove threats easily. However, most antivirus companies provide offline virus definition signatures so it can easily be download from any computer and then manually install the updates on a system or device with a limited or no internet connection at all.

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In this post, we have compiled the list of the best offline antivirus software with offline updates. Most of the software is easy to install; hence, you can download and update whenever necessary.

The software listed here falls into the following two categories:

  • Offline antivirus – That doesn’t need constant Internet connectivity in order to perform their job;
  • Antivirus offline installer – That can be fully downloaded from the Internet and then installed on another PC that isn’t even connected to the Internet.

Which is the best antivirus with offline updates?


Topping off our list is a software tool that manages to provide the maximum amount of online and offline protection against malware with a minimum of effort.

Bullguard is a great software solution that protects against ransomware, crypto-jacking, and more.

Protection is provided in real-time, and the scanning capability of the antivirus can be switched between fast and a more in-depth option.

Of course, the great news about Bullguard is that it is not an antivirus tool that depended on the online environment in order to work.

In keeping with the theme of this article, Bullguard also benefits from offline updates that you can download and install at a later date manually.

This keeps it updated against the latest threats that appear in the virtual world.

Here are some of the perks of using Bullguard:

  • Intuitive interface
  • Can be updated offline
  • Works silently in the background
  • Minimum interference with background processes
  • Now available at a discount price for a limited time only


Make use of this antivirus that can be updated in offline mode as well, now available at a discount price!
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Bitdefender Total Security

This is the Best Value for Windows PC Protection and it comes with different programs for PCs and Android mobile devices.

It is very compatible with the Windows OS. This security software protects against malware on various devices and it is also very good for slow computers.

Bitdefender updates its offline definition files once every week, usually on a Friday. The update file is a setup installer; hence, run the installer file to install the updates.

Ensure you get the correct 32-bit or 64-bit version for the operating system Bitdefender software is installed on.

As far as online protection is concerned, Bitdefender is indeed the top antivirus tool.



One of the most well-known antivirus tools on the market also supports offline updates. More so, it is now available at a discount price!
$29.99/year Buy it now

Vipre Antivirus Plus

best antivirus with offline updates

Vipre Antivirus Plus might not come with a load of extra options, but just with the essential ones, even in the Advanced or Ultimate plan. However, the product is a very reliable, next-gen solution to protect your devices and it offers offline updates.

Besides being easy to set-up, Vipre uses the latest technologies to detect not just the newest malware known in the industry, but also emerging and advanced threats that can compromise your system.

With Vipre, you get real-time protection and scanning for all your apps and programs upon launch, to ensure they are safe.

The Ransomware Protection feature blocks any type of exploit before it gets a chance to run on your device.

If you can’t use the automatic antivirus updates, you can download the latest program definitions from the official Vipre website.

Vipre Antivirus Plus

Vipre Antivirus Plus

Keep this antivirus updated while offline with all the program definitions at hand, in one single source.
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Avira Antivirus

Another ideal antivirus with an offline update is Avira Antivirus. This free antivirus software is a user-friendly antivirus program and efficient for every computer user. However, it is ideal for personal use.

If you intend to download the update file, you need to download a tool called the Fusebundle Generator. The latest signatures will be downloaded and then packed into vdf_fusebundle.zip in the Install folder.

To import the file into the Avira program, go to the Update menu, then click on manual update and locate the Zip file. On the download page, it would find a helpful slideshow.

The best part about this antivirus is just how often updates appear. While they may indeed be a hassle to update once every 2-3 days, knowing that you are protected against the latest threats is more than worth it.

Avira Antivirus

Avira Antivirus

This reliable antivirus tool that offers real-time protection is now available at a discount price!
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Avast Free Antivirus

First of all, Avast antivirus software is ideal for PCs and other devices. It offers great protection against online threats and very good for slow computers. Avast is compatible with the Windows OS. It supports offline update.

In addition, the Avast VPS Definitions file will update versions 5-8 of any Avast product with a separate download for the older v4.

However, Avast Free Antivirus still remains the best option for users who don’t want to pay for using the software. It works offline and offers great protection for your PC which makes it difficult to feel the occasional pop-ups.

Download Avast Antivirus

Kaspersky Internet Security

Kaspersky Internet Security is very good and compatible with the Windows OS. It has everything you would need in a suite and its components are very effective.

This security software has a strong firewall that can give your system maximum protection against unknown connections. It has an anti-malware security suitable to detect viruses before they infect your PC.

To update this software offline, download the zip file for the particular Kaspersky product you have. After extracting the zip, run the updater.bat file while waiting for definitions to download.

After downloading the definitions, go to your software settings and update sources manually.

Download Kaspersky

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AVG Internet Security software is an all in one package. It is very compatible with the Windows OS and can effectively work offline.

AVG has different update files for the free antivirus and their paid products. Download the Bin file, open the AVG main program, click on the options menu, and then update from Directory. After that, check for the bin file in the requester dialog.

On the download page, there are module files that can also update the AVG scanning engine or all of the components of the program while offline.

Download AVG (free)

McAfee Antivirus Plus

McAfee is amongst the best internet security software for Windows OS. Operating system: Windows 10, 8.1, 8 and 7.  It enables an offline update.

To update offline, simply download the DAT executable file from the website, run it and follow the instructions written on the screen.

Download McAfee

ClamWin Free Antivirus Software

Another antivirus software that can be updated offline is ClamWin. In addition, it is compatible with the Windows OS. ClamWin antivirus contains two definition files that can be downloaded.

The daily.cvd file is frequently updated; unlike the main.cvd file. Download the daily file, and then put it in the following default folder for Windows OS: C:/Documents and Settings/All Users/.clamwin/db

Download ClamWin

Comodo Antivirus

This is certainly one of the best free antivirus programs available. It has a proprietary Defense+ technology that usually assumes an unknown file is a potential threat which makes it almost 100% effective.

A lot of antivirus programs assume unknown files are safe and only get concerned about files that have proven to be a problem.

Always, check the Summary date for the last update. If you want to update Comodo, it is ideal to boot your PC in safe mode before you proceed.

However, the Base.cav file should be copied to C:/Program files/Comodo/Comodo internet security/scanners

Download Comodo Antivirus

F-Secure Safe

This security software is the best for browser protection and also has one of the best antiviruses for Windows. It is compatible with Window OS.

It can protect your devices from ransomware, Trojans and viruses and keeps all banking connection secured.

F-Secure download page contains definition downloads for Windows and a rescue CD update. Hence, download the fsdbupdate9.exe which is under the ‘’ manual update using fsdbupdate: Windows’’ heading.

After downloading it, run the executable file to update spyware, antivirus, spam and parental control definitions.

Download F-Secure

Clam Antivirus (ClamAV) software

ClamAV is a free cross-platform and open-source software which effectively updates offline. This Antivirus software can easily detect different types of malicious software, including viruses.

It is mostly used on mail servers as a server-side email virus scanner.

Clam antivirus contains two definition files you can download, although the main.cvd is updated far less frequently than the daily.cvd, which is a more important download.

Download the daily file, and then put it in the default folder:  C:/Documents and Settings/All Users/.clamwin/db

Download ClamAV

Trend Micro Maximum Security

This security software is the best choice for families who need to protect different types of devices because it’s compatible with Windows OS. It enables an offline update.

On the download page, there are several pattern files displayed, however, the consumer pattern at the topmost is all that is required to update your antivirus definitions.

Download the file, and then unzip to the following folder: C: /Program Files/Trend Micro/Internet Security

After that, restart your computer to recognize the new file.

Download TrendMicro

In conclusion, you can use any of the programs we mentioned above. You can download the update signatures and run them while offline.

Do share with us any antivirus with an offline update which we failed to mention by commenting below.

FAQ: Learn more about Antivirus tools

  • Does Windows 10 need an antivirus?

While Windows 10 comes with a reliable form of defense against cyber-attacks, it pales in comparison to dedicated third-party antivirus tools.

  • Do antivirus tools slow down your PC?

Indeed, some antivirus tools can slow down your PC, especially during scans. However, there are some such tools out there that manage to run silently in the background.

  • Are antivirus offline updates safe?

Yes, offline updates contain the same information that normal online streamed updates do. The only difference is how you apply them.

Editor's Note: This article was originally published in January 2018 and was revamped and updated in November 2020 for freshness, accuracy, and comprehensiveness.