The best free anti-ransomware tools 2017

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Free anti-ransomware tools

There are two main types of ransomware: the kind that encrypts your files (and sometimes threaten to delete them), and the kind that locks you out completely by preventing you reaching your desktop.

Ransomware creators usually include lots of intimidating threats and warnings to scare you into panicking and paying them, but there’s no guarantee that they’ll release your data if you do, and sending them money helps fund crime.

It’s best to stay calm and look for an alternative solution – there are several around. Many of the big names in PC security provides tools that will release your PC from ransomware, and don’t charge for the privilege. There are also dedicated tools to prevent programs that behaves like known ransomware from running on your PC at all.

This is our pick of the best free tools to unlock an infected PC, release encrypted files, or prevent a ransomware infection in the first place.

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 1. Avast Free Ransomware Decryption Tools

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Specialized solutions designed to defeat different strains of file-encrypting ransomware

Not all ransomware encrypts data in the same way, so security software providers have to create specific solutions as new threats emerge. At the time of writing, the security experts at Avast have developed Free Ransomware Decryption Tools to tackle 16 different strains of file-locking ransomware.

To help you work out which one you need, Avast has provided a detailed description of how each form of ransomware works, what extension you’ll see on the encrypted files, and an example of the type of message the virus creators have prepared for their victims. 

Once you’ve downloaded the appropriate tool, it will guide you through the process of wiping out the ransomware without paying the criminals. You’ll need to provide two versions of the same file – an encrypted one, and the original. This will be easiest if you made a backup before the infection, but Avast also suggests locations where you might be able to find unaffected original files. The decryption tool will then compare the two and use the results to determine the password.

Download here: Avast Free Ransomware Decryption Tools

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 2. Trend Micro Ransomware File Decryptor Tool

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A single download that can defeat 26 different breeds of file-encrypting ransomware

Trend Micro Ransomware File Decryptor Tool is updated regularly with new ransomware definitions, and at the time of writing it can release files locked by 26 different types of ransomware and their variants.

Unlike Avast, Trend Micro bundles all its decryption tools into one bundle, but you still need to tell it what form of ransomware it’s dealing with. Trend Micro’s site provides information to help you identify your particular infection, plus contact details for its technical support department if you’re not sure.

Once that’s done, provide a sample file for the Decryptor to analyze, and it will get to work. Decryption can take anything from a couple of minutes to several hours, depending on the type of encryption used. 

The File Decryptor Tool isn’t perfect – some forms of ransomware are particularly tricky, and can only be partially decrypted – but the company is constantly working to improve it, and it’s an excellent tool for use in an emergency.  

Download here: Trend Micro Ransomware File Decryptor Tool

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3. Trend Micro Screen Unlocker Tools

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Two emergency tools that can release a locked PC, whether you can access Safe Mode or not

There are two versions of Trend Micro Ransomware Screen Unlocker Tool – one for PCs that are locked so you can’t log into Normal Mode, but you can access Safe Mode with Networking via the BIOS menu, and another for situations where both mode are blocked.

The first of these can be downloaded directly on the affected PC in Safe Mode with Networking. Once it’s installed, reboot the PC into Normal Mode (with the locked screen) and tap [Ctrl]+[Alt]+[T]+ to scan for ransomware and remove it, 

The other version of the tool has to be downloaded using an uninfected computer and saved to a USB stick. You can then use to boot the locked machine. Once initiated, the unlocker will perform a scan, then remove any ransomware it detects, releasing your PC.

Like Trend Micro’s File Decryptor, the two versions of Screen Unlocker benefit from regular updates to combat new forms of ransomware.

Download here: Trend Micro Ransomware Screen Unlocker Tools

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4. BitDefender Anti-Ransomware

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An anti-malware vaccination that runs alongside your regular antivirus software

There are lots of superb free antivirus programs around, but not all offer dedicated protection against ransomware. If your you’re concerned about the risk, Bitdefender Anti-Ransomware is a handy supplemental security tool that runs alongside your usual security software to protect against some of the most common forms of ransomware and their offshoots.

Bitdefender Anti-Ransomware currently protects against VTB-Locker, Locky, Petya and TeslaCrypt, and starts defending your PC from these threats immediately. However, it’s only a preventative measure; if your computer has already been infected with one of these malicious programs, you’ll need to use one of the tools mentioned above instead.

If you currently use Bitdefender Antivirus, the Anti-Ransomware module is already installed.

Download here: Bitdefender Anti-Ransomware

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 5. Kaspersky Anti-Ransomware Tool

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Avoid an encryption disaster with free ransomware protection for your small business

Ransomware on your home computer is bad enough, but an infection that locks you out of your business PCs could be an absolute disaster. Your accounts, customer data, client information and work could all be encrypted – and it could affect multiple machines on the same network. 

Kaspersky Anti-Ransomware Tool for Business is designed to help small- and medium-sized businesses (SMBs) protect their data from such a catastrophe. Like Bitdefender Anti-Ransomware, it’s a preventative tool designed to prevent infection in the first place rather than decrypt files or unlock your desktop.

Kaspersky Anti-Ransomware TOol runs happily alongside your regular security suite, monitoring network activity for anything that matches known ransomware behavior. Its threat database is stored on Kaspersky’s cloud servers, so updates are pushed out to all users immediately 

Download here: Kaspersky Anti-Ransomware Tool for Business

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