Maintenance and Service Guide: 8200 Elite Series Convertible Minitower, 8200 Elite Series Microtower, 8200 Elite Series Convertible Small Form Factor, 8200 Elite Series Convertible Ultra-slim Desktop, 6200 Pro Series Microtower

The computer boots to DOS after making a bootable flash drive.
Cause Solution
Flash drive is bootable. Install the flash drive only after the operating system boots.
296 Appendix D Troubleshooting Without Diagnostics