| By Fred Langa |
Readers’ PCs suffer “Invalid System Disk” errors and a doubled boot time.
From XP onward, Windows rarely suffers serious boot problems. But when they do happen, help is close at hand.
Win7 boot yields ‘Invalid System Disk’ error
Charles Henderson’s PC no longer boots smoothly.
- “I am running Win7 Service Pack 1. It has been working OK. However, within the last week it has developed a peculiar boot issue.
“Now, when I boot the main drive, it stops after checking the two CD drives and gives this message: ‘Invalid System Disk, Replace the disk, then press any key.’ I press any key, and the boot continues as normal.
“Can you advise me on how to rid the boot process of this error message?”
The other main reason for this error is the PC getting confused about which disk, partition, or device it’s supposed to boot from. For example, a PC may be set to look initially for a boot floppy disk. If no floppy is found, then the system might look for other devices to boot from — a CD or DVD, external USB device, hard drive, or the network. If it gets stymied at any point along the way, you’ll see a “Press any key to continue” message.