Zero-XAtlas
Workspace
ConfigMgr (Enterprise subscription only)Verify fixes (Enterprise subscription only)Case log (Enterprise subscription only)Add a code (Enterprise subscription only)
Help
0x00000528

ERROR_MEMBER_IN_GROUP

Either the specified user account is already a member of the specified group, or the specified group cannot be deleted because it contains a member.

win32decimal 1320

Matched as: the code as given (hex)

Log a case with no specific solution
(Enterprise subscription only)

Source: System Error Codes (1300-1699) - Win32 apps · CC-BY-4.0 (MicrosoftDocs/sdk-api, repo license verified 2026-10-09) · retrieved 2026-10-09