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Why do Windows drive designations start at C?

Sarah Jenkins
Sarah Jenkins
Lead Content Curator · Feb 2, 2026 · Updated Apr 13, 2026

A and B used to be used for floppy disks. After they were no longer a thing, C stuck around because people were used to it. A very basic explanation, I'm sure others will correct me and you could also ask Google for much more information.

46
Words

1 min
Read Time

#311
of 500 in Space & Astronomy

-32%
vs Category Avg

The Short Answer

A and B used to be used for floppy disks. After they were no longer a thing, C stuck around because people were used to it. A very basic explanation, I'm sure others will correct me and you could also ask Google for much more information.

Analysis

Key Concepts: Used, floppy, disks

This explanation focuses on used, floppy, disks and spans 46 words across 3 sentences. At 32% below the average Space & Astronomy explanation (68 words), the answer takes a direct, no-frills approach — sometimes the simplest explanation is the most effective.

What This Answer Covers

The explanation opens with: “A and B used to be used for floppy disks.” It then elaborates by explaining the root cause, ultimately building toward a complete picture across 3 connected points.

How This Compares in Space & Astronomy

Ranked #311 of 500 Space & Astronomy questions by answer depth (top 63%). This is in the concise tier — a focused explanation that prioritizes clarity over exhaustiveness. Many readers prefer this level of directness.

Frequently Asked Questions

Is there a simple explanation for why windows drive designations start at c?

A and B used to be used for floppy disks. After they were no longer a thing, C stuck around because people were used to it. A very basic explanation, I'm sure others will correct me and you could also ask Google for much more information.

How detailed is this explanation compared to similar Space & Astronomy questions?

This is a focused answer at 46 words, ranked #311 of 500 Space & Astronomy questions by depth. The key concepts covered are used, floppy, disks.

What approach does this answer take to explain windows drive designations start at c?

The explanation uses root cause analysis across 46 words. It is categorized under Space & Astronomy and addresses the question through 1 analytical lens.