|Basically you need a bootable device first then a way to access data.|
Boot devices are floppies, hard drives, cd/dvd drives, usb devices if supported, pcmica, and network if supported.
Pick one and then search it. You can boot to windows and maybe run the install program if the files are on your hard drive. Might work if you mapped a drive also.
For usb see either how HP makes a bootable usb flash to use for install. Or see Barts/ubcd4win PEtoUSB.
Could even do it with barts network floppy to mapped drive.
"Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10