diff --git a/source/User-Manual/Installing-the-GUI.rst b/source/User-Manual/Installing-the-GUI.rst
index 7b310d3..0277f03 100644
--- a/source/User-Manual/Installing-the-GUI.rst
+++ b/source/User-Manual/Installing-the-GUI.rst
@@ -13,11 +13,13 @@ Windows
 Via installer (recommended)
 ----------------------------
 
+.. warning:: If you have previously installed version 1.x of the GUI and are an Open Ephys Acquisition Board user, you need to copy and paste the following into the File Explorer: :code:`%localappdata%\\Open Ephys\\shared-api10`, press enter to navigate to the folder, and delete the file :code:`libonidriver_ft600.dll`. Then, follow the instructions below to install the latest version of the GUI.
+
 1. Click the "Windows" link on `this page`_ to download the installer for the latest version of the GUI.
 
 2. Double-click the downloaded executable to launch the installer.
 
-3. Follow the instructions within the installer.
+3. Follow the instructions within the installer and any additional windows related to driver installation.
 
 4. The GUI will be installed in :code:`C:\\Program Files\\Open Ephys\\open-ephys.exe`.