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Drive Letters in Windows

Drive Letters in Windows. NTFS File System. NTFS File System. NTFS stands for New Technology File System The old file system was FAT, or FAT 32. Today, only a limited amount of flash drives use the HPFS, FAT and FAT 32 file systems. Microsoft originally developed the NTFS file system.

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Drive Letters in Windows

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  1. Drive Letters in Windows NTFS File System

  2. NTFS File System • NTFS stands for New Technology File System • The old file system was FAT, or FAT 32. • Today, only a limited amount of flash drives use the HPFS, FAT and FAT 32 file systems. • Microsoft originally developed the NTFS file system.

  3. Drive Letters in Windows • You may have noticed that in Computer (or My Computer in older versions of Windows), that each drive that shows up has an assigned drive letter. • The most common drive letter is C. • C: is assigned to the Local Disc on your computer, or the primary hard drive. This contains all of the files needed for Windows to function.

  4. Other Drive Letters • A and B are usually assigned to the 1st and 2nd consecutive floppy disc drives in a computer. • C is the primary partition, the Local Disc. C is always a hard disc, even if there are more than floppy drives. • D through Z are used for other drives. Windows will map devices with a letter when you insert them into your PC. Common devices are flash drives.

  5. More Drive Letters • H: is usually the home server on a network. • After you map a drive, your computer can read the files on it. • This is why flash drives might not have the same drive letter in different computers, which may render some shortcuts that use drive letters unusable on certain computers.

  6. 26… • Windows can assign a drive letter to a maximum of 26 drives, which is more than the average PC user will ever need. • But say you run out of them… • Then what happens?

  7. Shared File Storage • Some networks function in a way that allows different users of a network access to a certain part of a specific drive, only accessible to them. • You can combine drives or reassign drive letters if you need more letters.

  8. The Alternative • Once you run out, instead of assigning a new letter to a drive, you must mount the new drive inside of an existing one. Using this technique, you can have an unlimited amount of drives, given that you have the storage to support it. • Drive letters are completely optional, but the default in Windows. • You cannot assign a new drive letter to a volume or partition that has none.

  9. NTFS • If you run out of drive letters, Windows will force you to mount drives to an NTFS folder or a mount point rather than assign it a drive letter, as shown on the next slide.

  10. Picture • Computer Management

  11. Drive Letters • If you run out of drive letters, don’t worry; however, you won’t be able to use any more drive letters until you reassign them.

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