Error Code Portal
MicrosoftWindows Win32Error code

8428

ERROR_DS_COUNTING_AB_INDICES_FAILED

Alternative forms: 0x000020EC · 0x20EC · ERROR_DS_COUNTING_AB_INDICES_FAILED · 0x800720EC

What does this code mean?

Code 8428 · An issue reported by Windows Win32.

Official explanation · Original text

The attempt to count the address book indices failed.

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 (8200-8999) (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