Black Friday Week starts early!

Sandboxie-Plus Black Friday discounts are live starting today.
Home and Personal supporter certificates are now 25% off for a limited time.
Existing users benefit even more: Renewals and Upgrades are reduced by a full 30%.
If you’ve been thinking about getting a license or upgrading your setup,
now is the perfect moment to support ongoing development and unlock advanced features.

New product pre-launch: MajorPrivacy

At the same time, we are excited to announce that our new security and privacy tool
MajorPrivacy is now available for purchase. To celebrate its upcoming first stable release, early adopters receive a full 50% discount.
Get in early, try the latest public BETA, secure the reduced price, and help shape the future of MajorPrivacy with your feedback.

Several usability improvements have been implemented. MajorPrivacy components can now reliably browse protected or blocked folders, allowing the rule editor to function correctly in all scenarios. The UI will also no longer display popups when an unsigned DLL fails to load into MP's UI, such as third-party shell extensions invoked through file picker dialogs. Interaction behavior has been aligned with Sandboxie, meaning the single- and double-click handling is now consistent across both products, and middle-clicking once will open or hide the notification window. In addition, the software ID has been changed from MP-Beta to simply MP. Because of this adjustment, the older certificate files bundled with previous installers are no longer valid, and users should use the built-in trial certificate retrieval function to obtain a new 90-day certificate.

This update also resolves several issues, including a problem in the first-start wizard where firewall rules were not configured correctly. Furthermore, missing button localization strings have been added to the translation files, ensuring a more complete and consistent interface in all supported languages.

Download: https://github.com/xanasoft/MajorPrivacy/releases/tag/v0.99.4

This release of Sandboxie-Plus introduces a small but useful enhancement and several important refinements. A new checkbox for the “NoRestartOnPCA=y” setting has been added to the box options, giving users direct control without manual editing. The default value for “UseWin32kHooks” has been reverted from “y” back to “n” after it was found to cause compatibility issues with certain applications. Additionally, named syscall invocation under WoW64 has been improved to ensure more robust operation in mixed-architecture scenarios.

A significant focus of this update is stability, with several critical fixes in both user-mode and driver-level components. The “OpenWndStation=y” option now works correctly again when used together with “SandboxieAllGroup=y”.

Most importantly, this update includes fixes that directly affect the driver’s stability. A flaw that could lead to incorrect driver responses during certificate parsing and driver-info queries has been resolved, and a potential handle leak in SbieDll.dll involving SbieApi_DeviceHandle has been fixed as documented in issue #5097. These corrections eliminate scenarios that, under certain conditions, could have contributed to resource exhaustion or triggered system instability, reducing the risk of potential BSODs and improving overall reliability of the sandboxie.

Download: https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.16.7

Version 0.99.2 of MajorPrivacy introduces several usability and management improvements aimed at streamlining rule handling and automation. The update adds a new GUI autostart option, allowing MajorPrivacy to launch automatically with Windows for more seamless protection. It also introduces rule presets, enabling users to quickly enable or disable predefined sets of rules and tweaks with a single action, greatly simplifying configuration management. In addition, a new mechanism has been implemented to automatically clean up old Windows Firewall rules that were created from templates, helping keep the system’s rule base organized and efficient.

This release also refines the handling of firewall rule change approvals and rejections, ensuring smoother interaction and more reliable behavior during user decisions. The notification window display has been improved as well, offering clearer and more consistent visual feedback during runtime events.

Download https://github.com/xanasoft/MajorPrivacy/releases/tag/v0.99.2

This release delivers several important fixes and a key compatibility improvement to enhance the overall reliability and user experience of Sandboxie-Plus. A issue affecting Windows 7 users introduced in 1.16.5 has been resolved, ensuring that the program can once again establish a proper connection to the driver on this platform. Compatibility with recent Firefox Nightly builds (version 146) has also been addressed, allowing the browser to run correctly within the sandbox environment. This version also introduces a change to the default configuration: the UseWin32kHooks=y option is now enabled by default for all sandboxed processes. This adjustment significantly improves compatibility with Electron-based applications, reducing issues that some users previously experienced.

Overall, Sandboxie-Plus 1.16.6 / 5.71.6 continues the effort to refine system compatibility, stability, and performance across both legacy and modern Windows systems.

Download: https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.16.6

MajorPrivacy 0.99.1 introduces several important enhancements focused on flexibility, compatibility, and safety. This release adds new options to configure the DLL injection mode, giving advanced users more control over how MajorPrivacy interacts with running processes. A dedicated Sandboxie-compatible high-level DLL injection mode has also been added to ensure seamless integration between both applications for users running them together.

To improve onboarding and prevent misconfiguration, a mandatory warning page has been introduced in the first-start wizard. Until this notice is acknowledged, the creation of driver rules remains disabled, ensuring users understand the potential impact of advanced system-level configurations before proceeding.

Additionally, this version brings two convenient new actions related to Windows Firewall management. Users can now automatically create a set of useful initial firewall rules optimized for MajorPrivacy’s allow-list mode of operation, as well as restore the default Windows Firewall rules when needed.

With version 0.99.1, MajorPrivacy continues to refine its balance between powerful control and safe defaults, making advanced system protection easier and more reliable for all users.

Download: https://github.com/xanasoft/MajorPrivacy/releases/tag/v0.99.1

Sandboxie-Plus 1.16.5 introduces a range of refinements and fixes aimed at improving both usability and stability across the board. One of the most notable improvements is the enhanced INI Editor, which now offers a much more capable “Edit INI Section” dialog, making configuration editing more intuitive and efficient. Custom box colors are now preserved even when changing the Box Type Preset, ensuring that user-defined visual customization remains consistent. The sandbox border settings have also been expanded with support for alpha transparency, giving users finer control over the appearance of sandbox indicators.

The context menu icons have been refreshed for a cleaner, more modern look, and the default toolbar configuration has been refined for better usability. Under the hood, the Win32 system call handling has seen an experimental improvement: when UseWin32kFilterTable=y is enabled, the driver will now make use of the KeServiceDescriptorTableFilter instead of KeServiceDescriptorTableShadow where appropriate, providing more accurate and secure filtering behavior.

This release also resolves several technical issues. The reliability of the BindAdapter feature has been improved when a VPN or bound adapter becomes disconnected. A long-standing issue involving registry handling was fixed where a WOW6432Node subkey could incorrectly become HKLMSOFTWAREWOW6432NodeWOW6432Node. Additionally, a security-related issue was addressed where programs started with their 8.3 filenames were not properly identified as forced or blocked programs.

Overall, version 1.16.5 refines the user experience, enhances customization and system integration, and delivers improved robustness in key areas of the Sandboxie-Plus platform.

For a full list of changes please review the change log.

Downloads: https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.16.5

This release brings a series of important fixes, improvements, and new features to enhance both stability and functionality across all supported platforms. Several critical bugs have been resolved, including an issue that caused the user interface to fail when restarting in maximum mode, and a problem that prevented hash database entries and enclave permissions from being set or applied correctly. Enclave scripts now update properly when changes are applied, and the process of adding new enclaves no longer produces errors. The installer has also been corrected to handle updates involving ksi.dll reliably, and a major memory leak in the graphical interface has been eliminated, improving long-term stability.

The visual presentation of terminated processes has been refined—these processes are now rendered in gray, similar to TaskExplorer, for better clarity. In addition, internal safeguards enforcing the integrity of user-mode components have been activated to strengthen security.

MajorPrivacy 0.99.0 also introduces several notable additions: full ARM64 support, a new driver option allowing users to run self-signed, custom-compiled MajorPrivacy user-mode components, and a comprehensive Diagnostics Information dialog accessible from the Help menu. Together, these updates mark a substantial step toward improved reliability, performance, and flexibility across architectures.

Download: https://github.com/xanasoft/MajorPrivacy/releases/tag/v0.99.0

Sandboxie-Plus 1.16.4 / Classic 5.71.4 has been released on October 2nd, 2025. This version introduces a new protection option that blocks non-administrative instances of the session leader, such as Sandman.exe or Sbiectrl.exe, from accessing encrypted box data. This safeguard is enabled by default, though it can be disabled by setting ProtectAdminOnly=n if required. In addition to this enhancement, the release resolves a critical issue where Sandboxie-Plus 1.16.3 failed to connect to the driver on Windows Preview Build 27943, as tracked in issue #5003. Stability has also been improved with a fix for crashes related to the latest Signal client. Furthermore, the internal checks in Thread_CheckObject_CommonEx have been strengthened to provide more robust handling of encrypted boxes. This update continues the project’s focus on reliability, compatibility with evolving Windows builds, and stronger data protection.

Download: https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.16.4

This release focuses on extending automation and scripting across rules and secure volumes, improving Windows 7 compatibility, and strengthening safety around secure-volume protection. The update introduces a suite of scripting features that bring program rules and secure enclaves under automated control, while also adding editing and diagnostics tools for scripts so administrators can write, highlight and inspect script activity without leaving the application. Notifications have been added to automated firewall events and a mechanism to automatically approve or reject rule changes, streamlining routine policy operations while keeping administrators informed.

Volume handling has received significant enhancements. A new volume configuration window is available whenever a secure volume is mounted, and administrators can now script actions on mount and dismount events. Secure enclaves can be stored directly on a volume; these volume-stored enclaves live in an mpsys file at the root of the volume and are editable only while that volume is mounted. Important to note: when an enclave is stored on a volume, any rules that reference that enclave are also persisted into that volume’s mpsys file, ensuring rules and enclave data remain colocated and portable with the volume.

Under the hood and in the UI, several changes improve usability and compatibility. Configuration options have been reorganized: the maintenance menu has been refined and config-related items moved into the options menu for clearer separation of duties. The product now ships on Qt 6.8.3 with Windows 7 compatibility patches, and the driver has been adapted to run on Windows 7. When MajorPrivacy creates its program data folder at C:ProgramDataXanasoftMajorPrivacy, that folder is now readable by non-administrators to avoid unnecessary access problems. Wildcard rules that start without a drive letter, mount point or device path are no longer permitted; this restriction is deliberate and required to provide a hardened secure-volume protection model. The release also enables mounting secure volumes to a folder path and simplifies the HashDB view for easier inspection.

Stability fixes round out this release. Several crashes were addressed, including crashes when opening the hash database and when opening the process security ingress monitor (issues #87 and #88), and a Win7 crash has been resolved (issue #67). Log cleanup behaviour has been corrected and access notification messages now reliably include file information (issue #90). Overall, 0.98.5 delivers stronger automation, clearer volume management, improved backwards compatibility and a number of important reliability fixes.

Download: https://github.com/xanasoft/MajorPrivacy/releases/tag/v0.98.5