The system and everything is stored in the C drive, the E drive is for CD's / DVD's. But what is the D drive for, because I have nothing on D, it is completely empty.
That is for storing data.
But you have to save your files and / or programs there yourself.
D: \ is simply the second hard drive. This is where your data comes in. Absolutely normal
E: \ would then be the next hard drive, and so on
Aha, that's sort of an additional storage location. Good to know.
The hard disk is partitioned into two parts. The system is on C. Usually you save the data on D. If Windows has to be reinstalled, only the partition C is overwritten and the data remains on D. If you would save the system and data on the same partition and you would save Windows newly installed, the data can be irrevocably deleted.
But it can also be that you have installed two hard drives. One for the system and one for data.
This is usually a data or recovery partition from the manufacturer. But it is not absolutely necessary.
Deletion goes as follows.
Type in "diskmgmt.msc" (without the quotation marks) in the search box in the lower left corner and press Enter.
The disk management window opens. Now right click on D: and click on "Delete Volume". Confirm the warning message with Yes.
Now right click C: and click on "Extend Volume". Click again and again on "Next" without changing the settings and at the end on "Finish"
Finished! Partition D: is now gone and you have the previous space on C: available. You can now close the window
