This usually meant a non-bootable floppy was in drive A. DOS looked for the OS on a floppy before the hard disk. If an ordinary floppy was in drive A at startup, it ...

If you see this message Invalid system disk, Replace the disk and then press any key when you try to boot into Windows 11/10, here are a few troubleshooting suggestions you want to try. This happens ...

I got a Non-System Disk or Disk Error when I booted up my 2 year old Compaq notebook. After restarting about 50 times over the span of half an hour, Windows ...