-An alternative to Rufus is Etcher. Download Etcher from https://etcher.io. It
-will guide you through the process of selecting the ISO and your USB Drive.
+Using Rufus
+^^^^^^^^^^^
+
+Rufus is a more lightweight alternative, but you need to use the *DD mode* to
+make it work. Download Rufus from https://rufus.ie/. Either install it or use
+the portable version. Select the destination drive and the {pve} ISO file.
+
+IMPORTANT: Once you 'Start' you have to click 'No' on the dialog asking to
+download a different version of GRUB. In the next dialog select the 'DD' mode.