The old PC booted from Disk 1. Blue setup screen: Microsoft MS-DOS 6.22 Setup . It asked for Disk 2, then Disk 3. When the third floppy clicked, the install finished.
HIMEM is testing extended memory... done. Microsoft(R) MS-DOS(R) Version 6.22 (C)Copyright Microsoft Corp 1981-1994. ms dos 622 iso work
Volume in drive B is OVERRIDE Directory of B:\ The old PC booted from Disk 1
: For modern retro-DOS tasks, consider FreeDOS (open source, FAT32/LFN support) unless compatibility with Microsoft-specific tools (e.g., MS-DOS 6.22 DEBUG.EXE , INTERLNK ) is strictly required. consider FreeDOS (open source