1. If you turn on a PC and the boot-up process halts, giving you the message: “Non-System disk or disk error….Replace and press any key when ready”, the problem is likely:
- A non-bootable floppy disk is in the floppy-disk drive and you should remove it
- The hard-drive has failed and you should replace it
- RAM has failed and you should replace it
- A key on the keyboard is stuck and the keyboard should be replaced
2. If you turn on a PC and the system unit is clearly ON, but the monitor is dark, the problem could be that:
- The monitor is not turned ON
- The monitor is not plugged in
- The monitor is not connected to the PC
- Any or all of the above
3. If a PC freezes or behaves otherwise erratically, and the system unit is very quiet, the most likely cause is:
- A virus has infected the system
- The hard-drive is almost out of space
- The CMOS RAM is failing
- The power-supply fan has failed and the system is overheating
4. What should you do if you receive the following message:
Cannot find a device file that may be needed to run Windows or a Windows application…zyvxd.386
Press any key to continue?
- Power the machine OFF, then ON to resync the kernel
- Replace the hard drive
- Start Windows and run Scandisk to reload the missing file(s)
- Press any key to continue loading Windows and, then, either reload the missing file or remove the line in SYSTEM.INI that loads it
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