Right‑click on Sentinel_LDK_Run-time_setup.exe (or similar) and select Run as administrator .
: Download the official driver from Thales support (formerly SafeNet) for reliability and security.
For maximum compatibility with Windows 10 and 11, use the official Thales (Sentinel) drivers rather than legacy "3.25" specific installers:
Thales (the manufacturer) confirms that the newer Sentinel HL drivers support all older HASP HL dongles.
. These dongles act as physical keys for high-end engineering, medical, or specialized design software, ensuring software compliance by requiring the hardware to be present for the application to run. The Evolution of HASP HL 3.25 Drivers
The direct, working solution for Windows 10 64-bit (all versions up to 22H2 and Windows 11) is the old HL 325 driver disk. Instead, you need the Sentinel HASP/LDK Windows GUI Runtime Driver .
Go directly to the official Thales support portal and search for "Sentinel LDK Windows GUI Run-time Installer" or simply "HASPUserSetup" . This is the latest version that is explicitly designed to be compatible with Windows 10 and Windows 11.
Follow these steps to ensure a clean installation of the driver on Windows 10 64-bit. Step 1: Remove Old/Corrupted Drivers Unplug the HASP HL 3.25 USB dongle. Open . Expand Universal Serial Bus controllers .