Hi All, rse Ive tried to be clever and install OS Catalina to my old Mac mini 3,1 which was running Mavericks. It took a fair bit of messing and playing around but I got it working. I say working is a stretch as its SOOOOOOOOOO painfully slow. I now realise I was better off leaving it as it is. So how is the best way to get back to its original os? I don't have a back up or disc(sorry I know I'm a muppet for this) I used this to upgrade dosdude1's... Mac mini 3,1 Help. from AVForums https://ift.tt/3aj5oHB