If you're wondering, those empty primary IDE channels were occupied by a spare hard drive (moved to file server) and a CD-ROM drive (broke). The only change I made was upgrading the FastTrak66 driver.

I've been running relatively stable for the last few months. Receive a notification this morning that windows needed to restart for an update. Figure it's something that downloaded in the background ...

Windows 10 fixed the issue for many users through the Automatic Startup Repair feature that runs after failing to boot Windows 10 a few times. Other users were forced to perform a more complicated ...