This is a VERY strange problem that even has my computer repair guys baffled.
- It's a Dell 3521 Insp. Laptop. running Windows 7.
- Laptop came with a DVD drive that was removed and an SSD installed as the primary boot device (legacy boot) with its original 500 GB HDD made into a secondary drive.
- I boot the laptop up, boots up fine everytime. But does not detect the secondary 500 GB the first time around. The next boot, everything is fine. No problem.
- Thought I'd install Windows 10 to see if the problem goes away, but it did not. Same thing. Every boot is fine, but the secondary hard drive only detects on every consecutive boot.