I don't have another Mac to download Catalina onto a memory stick. Doing it with Windows is a pig. Unless you know a good way...How about installing the OS.
Tried this and various other combos but get a flashing folder icon with a massive question mark. Ethernet is plugged in. It means a USB drive recovery is required. I'm looking for an easy way to create one in windows without jump through 5 million hoops.2013 iMac should have internet recovery so just use that. Hold CMD option and R when booting and just follow the options through.
Thanks for the offer. I'll check for internet and keyboard issues on Monday and let you know how I get on.I can do it on my MacBook and send it out to you but it would be a few days before you got it.