Microsoft MS-DOS Step-Up 6.0 to 6.2 High Density 3.5” Floppy Upgrade Disc Used

It is specifically designed for use with Microsoft DOS and is compatible with the 3.5″ floppy drive.

Microsoft MS-DOS 6.2 Step-Up 3.5 Floppy Disk Operating System w/ SEALED MANUAL

You will find that Microsoft handles gaming well with support for DirectX and Game Pass.