Notepad++ doesn't launch (notepad++.exe present in the task manager)

Yesterday Notepad++ was runnable, but today it doesn't. In spite of the notepad++.exe (with its 13 process) presence is the tasks manager, Notepad++ window doesn't launch.

I tried to uninstall and re-install the sofware (and the first launch works), notepad.exe is present in C:\Windows and C:\Windows\Sytem32 folders.

The last file opened with notepad++ was a xml file which isn't readable by other softwares because of the following error message :

The '<' caracter can not be used in a value attribut

What can I do please ?


Try removing the file from C:\Users\<username>\AppData\Roaming\Notepad++\session.xml which reopens the file when you start the program.

If that does not work, maybe you should try a complete uninstall/reinstall if you haven't already.

EDIT: Workaround found (thanks to sgmoore): Install standalone version of Notepad++ (notepad++ portable).


I encountered the same problem as you. Do the following:

  • Go to C:\Program Files\Notepad++\plugins
  • Move LightExplorer.dll to C:\Program Files\Notepad++\plugins\disabled.

If you cannot find LightExplorer.dll then move Explorer.dll to C:\Program Files\Notepad++\plugins\disabled

The problem should be solved with this method.


I sometimes get this problem too, all I do is:

  1. use task manager to kill those np++ processes
  2. Find np++ shortcut in the start menu, right click and chose "Run as Administrator" (window appeared)
  3. Close this np++ window, then reopen it normally (without Administrator) and it works.

I assume it is something like the session file, or a plugin, that gets locked up, or refuses access, and running as administrator clears that issue - but I could be wrong.

Hope my solution works for you, and anyone else who experiences this issue.