Q: After updating to Windows 8.1 - LogiLDA.dll module not found

I just updated to 8.1 and now I'm getting the error 
"There was a problem starting C:\Windows\System32\LogiLDA.dll
The specified module could not be found"

This happens every time I sign into my account.
Anyone have any suggestions?



I'm a "ME TOO"....are we all using a Logitech M185 mouse or similar? (...system32/LogiLDA.....)

I just updated my Surface Pro to 8.1.....I think I'll remove the Logitech mouse antenna(?) from the usb port and restart and see if I get the same message.




Nope, still get the same fail message for running that .dll


We still need help!



I'll just upgraded my Windows 8 to Windows 8.1.

Now I'll recive the LogiDLA message at startup/logon.


My fix.


Launch the Taskmanager.

Under TAB Startup search for LogiLDA

Right mouse button an disable.


Message popup resolved.


Stop here if you dont know the Windows registry.

But if you know go to the next step.


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.

Did this solve your problem?

Sorry this didn't help.

50 people were helped by this reply



Fix without having to open regedit or do any registry entries


  1. Insert Unified Logitech Dongle into an open USB port on the machine generating the LogiLDA.dll error
  2. Machine regonizes the ULD and loads appropriate software
  3. Verify that the mouse/trackball works through the ULD
  4. If ok, then
  5. Reboot
  6. After the machine restarts, login
  7. Error no longer appears

Did this solve your problem?

Sorry this didn't help.

32 people were helped by this reply

Question Info

Views: 228,855 Last updated: June 17, 2018 Applies to: