Error Code Portal
MicrosoftWindows Win32Warning or status code

763

ERROR_INTERRUPT_VECTOR_ALREADY_CONNECTED

Alternative forms: 0x000002FB · 0x2FB · ERROR_INTERRUPT_VECTOR_ALREADY_CONNECTED · 0x800702FB

What does this code mean?

Code 763 · An issue reported by Windows Win32.

This entry includes warnings or status values that are not errors. Check the original documentation for the conditions under which they are returned.

Official explanation · Original text

The specified interrupt vector was already connected.

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 (500-999) (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