The same happens if we create partitions on the main drive. When creating partitions, we are creating new storage units so it is necessary to identify them with a letter, regardless of which file system we use.
If you have ever wondered why Windows does not start with the letter A To identify the main unit, we must go back a few years, when storage units in the form of 5 1/4 and 3 1/2 floppy disks were used.
Before hard drives, there were floppy disks.
When the first personal computers were launched on the market by IBM, these They didn’t have a hard drive.but rather they worked through floppy disks, this being the primary storage of the computer, hence the letters A and B were assigned to them, since most computers included two disk readers, one for the operating system and the other to run applications or save files.
As hard drives began to become popular on the market, computers stopped including two disk readers, replacing the second reading unit with the hard drive. In this case, the hard drive was used to store the operating system and the flexible drive to install applications and/or save documents.
As computing evolved, CD drives and later DVD drives arrived. These use the letter D to be accessible from the operating system. Since it is a technology that came, let’s say in third place, when it comes to reading drives, they had no choice but to settle for the letter D, as long as we did not have another hard drive installed in the computer.
If we have the opportunity to get a floppy disk drive, when we connect it to the computer, it will recognize it as a disk drive and assign it drive A. If we connect a second drive, it will be assigned the letter B. Windows allows you to manage up to 26 storage units, although if we exceed that limit, there is no problem, since they will be accessible through a volume ID, but it will not be accessible from any application or from File Explorer.
Use the letters A and B as storage units
Although floppy disks have completely disappeared from the market, Windows continues to reserve these letters for this type of storage by default. However, we can start using these letters for the units that we have connected to the PC, such as pendrives or external or internal hard drives other than C, where the operating system is located.
To use the letters A and B as drives in Windows, the first thing we must do is access Disk Manager through the right mouse button on the Start button. Next, we select the storage unit to which we want to assign the letter A or B and with the right mouse button, click on the option Change the drive letter and paths for (drive and whatever name it has).
In the window that appears, click on Change and select the letter A or B (whatever we want) from all the letters shown. When you click OK, Windows will show us a message informing us that the change may affect the operation of certain applications that depend on letter units. We click on Yes to confirm and that would be it.
From this moment on, the connected drive that we have changed the name will appear in the file explorer with the letter A or B that we have chosen.