LogiLDA.dll is part of the LogiTech download agent and can safely be disabled/removed.
- Launch the Taskmanager.
- Under TAB Startup search for LogiLDA
- Right mouse button an disable.
- Open the commandprompt and type Regedit
- Go to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- Find the entry Logitech Download Assistant
- Select it, right mouse button and Remove.