updated with feedback from Coco and Sertaç

Author: Nickomang

articles/aks/image-cleaner.md

@@ -63,9 +63,16 @@ Register-AzResourceProvider -ProviderNamespace Microsoft.ContainerService
 
 ---
 
+## Limitations
+
+ImageCleaner does not support the following:
+
+* ARM 64 node pools. For more information, see [Azure Virtual Machines with ARM-based processors][arm-vms].
+* Windows node pools.
+
 ## How ImageCleaner works
 
-When enabled, an agent is deployed on each agent node, which will use an `ImageList` CRD to determine unreferenced and vulnerable images. An `ImageList` can either be defined manually or automatically generated by ImageCleaner.
+When enabled, an `eraser-controller-manager` pod is deployed on each agent node, which will use an `ImageList` CRD to determine unreferenced and vulnerable images. An `ImageList` can either be defined manually or automatically generated by ImageCleaner.
 
 In manual mode, the `ImageList` is created based off of a provided list of image names. In automatic mode, a time interval is set. ImageCleaner will continually run in this interval to generate an updated `ImageList`.
 
@@ -83,7 +90,7 @@ In addition to choosing between manual and automatic mode, there are several opt
 
 ## Enable ImageCleaner on your AKS cluster
 
-#### Enable ImageCleaner on your cluster
+### Enable ImageCleaner on your cluster
 
 To create a new AKS cluster using the default interval, use [az aks create][az-aks-create]:
 
@@ -103,6 +110,7 @@ The `--image-cleaner-interval-hours` parameter can be specified at creation time
 
 ```azurecli-interactive
 az aks update -g MyResourceGroup -n MyManagedCluster \
+  --enable-image-cleaner \
   --image-cleaner-interval-hours 48
 ```
 
@@ -134,3 +142,5 @@ The deletion logs are stored in the `image-cleaner-kind-worker` pods. You can ch
 [get-azproviderpreviewfeature]: /powershell/module/az.resources/get-azproviderpreviewfeature
 [az-provider-register]: /cli/azure/provider#az_provider_register
 [register-azresourceprovider]: /powershell/module/az.resources/register-azresourceprovider
+
+[arm-vms]: https://azure.microsoft.com/blog/azure-virtual-machines-with-ampere-altra-arm-based-processors-generally-available/