diff --git a/bucket/f3d.json b/bucket/f3d.json
index f259b33b66c94a..b183f8adeb3cb7 100644
--- a/bucket/f3d.json
+++ b/bucket/f3d.json
@@ -3,6 +3,11 @@
     "description": "A fast and minimalist 3D viewer",
     "homepage": "https://f3d.app",
     "license": "BSD-3-Clause",
+    "notes": [
+        "Optional: enable Explorer thumbnails (requires an elevated PowerShell).",
+        "Register: regsvr32 \"$(scoop prefix f3d)\\bin\\F3DShellExtension.dll\"",
+        "Unregister: regsvr32 /u \"$(scoop prefix f3d)\\bin\\F3DShellExtension.dll\""
+    ],
     "architecture": {
         "64bit": {
             "url": "https://github.com/f3d-app/f3d/releases/download/v3.5.0/F3D-3.5.0-Windows-x86_64-raytracing.zip",
@@ -35,9 +40,6 @@
         "architecture": {
             "64bit": {
                 "url": "https://github.com/f3d-app/f3d/releases/download/v$version/F3D-$version-Windows-x86_64-raytracing.zip",
-                "hash": {
-                    "url": "$url.md5"
-                },
                 "extract_dir": "F3D-$version-Windows-x86_64-raytracing"
             }
         }