Fred uses a Windows PC, and he's having trouble updating to the 1903 update. He had a similar problem a few years ago during the Anniversary edition. He just can't update it. Leo says he's heard several are having issues like that and it could be something unusual that is uncommon about his computer. It could be hardware related, but also quite likely a unique computer program that he has installed. Leo suggests unplugging any external USB peripherals like a printer or external hard drive, then try the update.