Are there any files in C:\Users\<your username>\AppData\Local\Temp\Jaksta? If so can you please zip them up and attach them to this ticket so we can see.
You may have to switch on hidden files and folders to see this folder: https://support.microsoft.com/en-au/help/14201/windows-show-hidden-files
I downloaded the newest version of Jaksta 184.108.40.206 for Windows, installed it, and chose the reboot now option.
When I try to open the program, a blue circle appears, spins for a moment, then disappears.
The program never runs, nor do I see it pop up on the task manager.