In rare cases, double-click the Foxit Reader icon or PDF file,Foxit Reader won’t be launched at all. For this situation,please open Task Manager of your system to check whether there are already many Foxit Reader prepossess running in background and choose to end all of those Foxit Reader processes before you cloud reopen Foxit Reader application again.
To end Foxit Reader processes in task manager,please do the followings:
1:Please simultaneously press the Ctrl + Shift + Esc keys on your keyboard to open the task manager window.
2:Click on Processes tab in the Task Manager window,please select each of the running Foxit Reader processes individually and click the End Process button to end the selected processes one by one.