When hard closing Lotus Notes, for example by terminating the process, or asking Windowsto do it when the program does not answer, you might face this issue at the next Lotus Notes start.
Do not reboot your computer ! All you have to do is to terminate the ntaskldr.exe process.
Simply go to the WindowsTask Manager (by pressing CTRL+ Shift + Esc, or by pressing CTRL + ALT + DEL => Start Task Manager)
There, in the processes tab, find the process called ntaskldr.exe (or nnotesmm.exe or nlnotes.exe), and click on End Process
End process ntaskldr.exe
Validate again that you do want to close this process by clicking End Process in the confirmation box.
Confirm ending of process ntaskldr.exe
You can then open Lotus Notesagain from the WindowsStart menu or another desktop link / URL …
