Hi Diguelo.
Tyros 1...great keyboard, and I had mine for many years. Very easy to sort this out but you need to follow the steps I will give you.
Allow a couple of hours. OK.... Here we go.
My advice to you is simple.
Firstly, don't bother with the virtual floppy drive 'conversion' because it can give you a LOT more hassle than just using the Onboard Floppy Disc player.
Secondly. Take the 8 screws out of the long plate on the base of your Tyros 1 and remove the hard drive. These are just basic laptop sized hard drives, and very easy to upgrade or replace. It's a 5 minute job.... Really easy.
Thirdly. Now do a Full Factory Reset from the Utilities section of your Tyros. Turn it off once you've done this.
Now making sure you have the necessary update to O/s 1.4 install it to your Tyros following Yamaha instructions.
IMPORTANT..... DO THIS WITH FLOPPY DISCS... NOT via the Host Port. You will need 14 blank, formatted discs. Mark them 1 thru 14 as they MUST be installed in order.
Format them on the Tyros, and then download the update files onto them. Simply follow the Yamaha instructions.
You should then have your Tyros 1 in the same state it would have been when it was new, and with Version 1.4 installed.
Do that first, and then come back to us
By the way you DO NOT need a hard drive in the Tyros to use it. The hard drive would have been an addition by the previous owner. It's not part of the original system.
You can replace it later, and you may want to put a bigger one in, as it will give you more storage, but for now, follow the steps above.
Keith