In Windows the only option provided is FAT32, could try an NFTS formatted flash for Recovery, could it be their program would actually query the file system?
No recovery required yet, as everything is fine now, as the deck chairs on the Titanic are all aligned and looking very comfortable. 🙂
Just succumbed the urge to oscillate from the thread regarding the blessed UPS batteries, they have eventually arrived, yay, as there happened to a bit of a hold-up. So was prompted at receipt of delivery to submit a review to Google, which was done, and as it has turned out, now showing at Google Maps.