File System Protector

Product Overview

NoVirusThanks File System Protector is a powerful utility which uses a kernel-mode driver to completely lock a file or a folder and to deny write access to files (allow read-only). You can write rules for any process or only for specific processes, you can lock files or folders and you can also protect files from modifications (write access) so that processes can only read the file content, but not hijack or modify it. With NoVirusThanks File System Protector you can protect sensitive files and folders from unauthorized accesses or modifications, a swiss army knife against nasty ransomware like CryptoLocker family or to just protect important files.


On the “Settings” tab you can specify a custom logs folder to save blocked events, and on “Exclusions” tab you can manage trusted applications (using wildcards), so they are excluded from the block-rules. To edit the default rules or to create your custom rules, open the “Rules” tab and then click the button “Edit Rules” (it may ask you Admin credentials) to edit the Rules.DB file. The rules are updated in real-time and writing rules is very easy, you can use wildcards characters and aliases, example:

Key features and characteristics

  • Prevent the modification of specific files and folders
  • Useful to protect important folders and files
  • Write your own rules to protect any files and folders
  • Specify to monitor any process or only specific processes
  • Easy-to-write rules thanks to wildcarding and aliases
  • Deny write access to files
  • Deny access to folders and files (lock them)
  • Show useful information when an action is blocked
  • Powerful protection thanks to the kernel-mode driver
  • Supports all Microsoft Windows Vista+ OSs
  • Very lightweight in memory and CPU usage

Additional Details

File Version
Last Updated 09 December 2015
Category System Utility
License Type Freeware
Operating System Windows Vista+ (32-bit / 64-bit)