diff --git a/.github/workflows/upload-win-installer.yml b/.github/workflows/upload-win-installer.yml
index df7bfb949e..c26bb2d533 100644
--- a/.github/workflows/upload-win-installer.yml
+++ b/.github/workflows/upload-win-installer.yml
@@ -55,6 +55,13 @@ jobs:
     - uses: actions/checkout@v3
       with:
         ref: ${{steps.getversion.outputs.version}}
+    # This step is super-duper critical for the built/signed windows installer .exe file.
+    # It ensures the referenced $version github release page does NOT already contain
+    # this file.  Windows assigns a UUID to the installer at build time, it's assumed
+    # by windows that one release version == one UUID (always).  Breaking this assumption
+    # has some rather nasty side-effects in windows, such as possibly breaking 'uninstall'
+    # functionality.  For dry-runs, the .exe is saved in the workflow artifacts for a human
+    # to judge w/n (i.e. in some extreme case) it should be uploaded to the release page.
     - name: Check
       id: check
       run: |