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diff --git a/installation_instructions/macintosh/installation_instructions.md b/installation_instructions/macintosh/installation_instructions.md
index fd7fb5a003933c94968a56f77174b03a3f8c0f13..da6419d285cb89daf698f1b43b9b7bddb3cad305 100644
--- a/installation_instructions/macintosh/installation_instructions.md
+++ b/installation_instructions/macintosh/installation_instructions.md
@@ -44,7 +44,9 @@ The line that reads `"debugger": false` needs to be changed to be `"debugger": t
 
 ## 4. Associate Notebook Files with Jupyter Lab
 
-The files that we will be working with this semester are called *Jupyter Notebook* files.  These files have a file extension of `.ipynb`.  You can make it so that when you double click on a file that ends in `.ipynb` it will be opened by Jupyter Lab.  Download the [Test Configuration Notebook](https://git.doit.wisc.edu/cdis/cs/courses/cs220/cs220-lecture-material/-/raw/main/installation_instructions/test_configuration.ipynb?ref_type=heads&inline=false) and a [Jupyter Lab Associator Program](https://git.doit.wisc.edu/cdis/cs/courses/cs220/cs220-lecture-material/-/raw/main/installation_instructions/JupyterLabLaunchAssociator.zip?ref_type=heads&inline=false) which we will use to make the file assocation.  Open your Downloads folder with finder.   Click on the `JupyterLabLaunchAssociator.zip` file and type Command-C to copy the file name.  Then control-click on the "Downloads" folder at the top of the window to see the parent directories and select the folder with your username.
+The files that we will be working with this semester are called *Jupyter Notebook* files.  These files have a file extension of `.ipynb`.  You can make it so that when you double click on a file that ends in `.ipynb` it will be opened by Jupyter Lab.
+
+Download the [Test Configuration Notebook](https://git.doit.wisc.edu/cdis/cs/courses/cs220/cs220-lecture-material/-/raw/main/installation_instructions/test_configuration.ipynb?ref_type=heads&inline=false) and a [Jupyter Lab Associator Program](https://git.doit.wisc.edu/cdis/cs/courses/cs220/cs220-lecture-material/-/raw/main/installation_instructions/JupyterLabLaunchAssociator.zip?ref_type=heads&inline=false) which we will use to make the file assocation.  Open your Downloads folder with finder.   Click once on the `JupyterLabLaunchAssociator.zip` file and type Command-C to copy the file name.  Then control-click on the "Downloads" folder at the top of the window to see the parent directories and select the folder with your username.
 
 ![Download's parent directory](images/download_parent_dir.png)
 
@@ -60,7 +62,19 @@ In the window browse to where you expanded the zip file to extract the applicati
 
 
 
-Go back to the Downloads folder and double-click to try and open the notebook file.
+Go back to the Downloads folder and double-click to try and open the notebook file.  You will probably get one of two errors
+
+<img alt="Cannot Verify" src="images/cannot_verify_notebook.png" width="50%">
+
+<img alt="Cannot Open Error" src="images/cannot_open.png" width="50%">
+
+On the first error click "Open" and then on the second error click the "Show in Finder" button. On the laucher logo control-click and select open.
+
+<img alt="after ctrl-click on launcher log" src="images/on_open_in_finder.png" width="50%">
+
+Then, on this final error, click the "Open" button.
+
+<img alt="on first launch" src="images/on_first_launch.png" width="50%">
 
 
 ## 5. Test the configuration
diff --git a/installation_instructions/windows/installation_instructions.md b/installation_instructions/windows/installation_instructions.md
index c1dffac1a0d644d1771c4e97915ff79692ea5f18..6965ba5afed0d55746c19507f31469a37da4206d 100644
--- a/installation_instructions/windows/installation_instructions.md
+++ b/installation_instructions/windows/installation_instructions.md
@@ -14,12 +14,12 @@ This document will walk you through the steps you need to perform to install and
 
 On the download page, it should have detected your operating system and provided a link at the top of the page for the proper version.
 
-![download button(images/image.png)
+![download button](images/image.png)
 
 Download and run the installer.  On the "Install for:" page select "Just Me (recommended)" and then accept the default installation folder.
 
 ![Install for Just Me](images/image-4.png)
-![Keep Default Install Location](image-5.png)
+![Keep Default Install Location](images/image-5.png)
 
 On the Advanced Installation Options, keep the default first and third checkmarks to create a shortcut and register Anaconda3 as the default for Python.
 
@@ -42,7 +42,7 @@ You will be submitting your code to our grader, which is running a slightly olde
 
 ## 3. Enable the debugger
 
-One feature of Jupyter Lab that we will use this semester in the debugger.  It is disabled by default.  To enable it you will need to edit a text file.  Start by opening the file explorer
+One feature of Jupyter Lab that we will use this semester is the debugger.  It is disabled by default.  To enable it you will need to edit a text file.  Start by opening the file explorer
  ![File Explorer Icon](images/image-18.png) and in the sidebar, click on *home*.
 
 ![Home option in File Explorer](images/image-19.png)