I had so many games and programs on the Data (D. Drive.
Suddenly, when I was on my laptop today, the drive was gone…
What happened?!
You do not give it, but I assume that the drive (D. Disappeared from Explorer.
What kind of drive is this? - Is it a hard drive that is installed next to an SSD?
Look in the disk management, if the Laufswerkbuchstabe is missing.
If so, right-click on the hard disk> Change drive letters and paths…