Error Code Portal
MicrosoftWindows Win32Error code

6849

ERROR_BAD_CLUSTERS

Alternative forms: 0x00001AC1 · 0x1AC1 · ERROR_BAD_CLUSTERS · 0x80071AC1

What does this code mean?

Code 6849 · An issue reported by Windows Win32.

Official explanation · Original text

The operation could not be completed due to bad clusters on disk.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

System Error Codes (6000-8199) (WinError.h) ↗

Creator: Microsoft and MicrosoftDocs contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source details · Original licenses and notices