This is confusing for any Windows user - using the help (?) on dialogs opens the Avast Secure Browser by default. Is this browser installed by n-Track Studio? If so, why?
Windows has a default browser setting that works intuitively. Removing the Avast Secure Browser returns Windows to use the user-selected browser. Please use this mechanism to avoid unwanted software installation and user confusion.
n-Track does use the Windows default browser, and certainly doesn’t install Avast nor any other web browser. Perhaps you had .html files associated with Avast browser, while http(s) URLs associated with another browser, so since n-Track was opening an .html file for the user guide the Avast browser was opening it.
I select the default browser in the system settings as Google Chrome. This works for all Windows compatible applications. On many occasions I have used the help option in n-track Studio and have seen the Avast Browser with my own eyes. When I use other applications I get the correct Windows default browser functionality when opening PDF, HTML and similar files - Visual Studio for example. The help file for n-track Studio is a PDF file installed on the file system and when opened opens my selected application Google Chrome. Checking my installed applications the Avast browser was installed on the same day that n-track Studio was installed on my system. However, it could be that I installed other software on that date that installed the Avast browser.
The fact is that my eyes do not lie and I have enough testing experience to be alerted to strange responses to standard Windows operations.
Naturally you must assess the priority of such a strange response and the resources you assign to confirm my observation Flavio. If it is not reproducible then you can always reject.
After removing the unwanted Avast browser n-track Studio does work now as expected - so a solution has been found although the conundrum still remains.
The n-Track user guide is in html format, not pdf. Specifically it’s the file manual.html in (typically) “C:\Program Files\n-Track\n-Track Studio 10\manual”. You can try reinstalling n-Track to confirm that it doesn’t install Avast or any other browser.