This message is often the consequence of corruption or uninstallation of the protection system driver, for example when updating Windows.

To reinstall the Sentinel driver, download this :

Once the file has been downloaded, unzip its contents at the location of your choice by right-clicking on the file name and selecting "Extract all", which will bring up the following window:

If necessary, adapt the suggested path (a sub-folder located in the same directory as the downloaded file and with the same name, without the .zip extension). Then go to the destination folder and double-click on the "HaspUserSetup" file.

N.B.: depending on the parameters defined in your user profile, you may have to validate the execution of the program or encode an administrator username and password .

Then validate the different steps without changing anything to the proposals made by clicking on "Next", simply tick "I accept the licence agreement" in the second screen, otherwise you will not be able to proceed to the next step. In the last screen, click on "Finish".