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0xC026251B: ERROR_GRAPHICS_OPM_SESSION_TYPE_CHANGE_IN_PROGRESS

Windows Error Code Lookup: Decode Windows error codes: Win32, HRESULT (0x80070005), NTSTATUS, Windows Update, msiexec and blue-screen stop codes, with what to check next.

Paste the number from an error dialog, event log, script or setup log: 0x80070005, 80070005, -2147024891, 1603, 0xC0000005, a stop code like 0x7E, a name like E_ACCESSDENIED, or a few words. You get every way Windows could mean that number (an HRESULT often wraps a Win32 error, so 0x80070005 is "Access is denied" too), its parts decoded, and what to check for the common ones. Names and messages come from the Windows SDK headers and Windows' own message tables; see Microsoft's System Error Codes and [MS-ERREF] for the full references.

Try: 0x80070005, 1603, 0xC0000005, 0x800F081F, 0x8024402C, 0x7E, access denied

0xC026251B = 3,223,725,339 = -1071241957

HRESULT 0xC026251B

ERROR_GRAPHICS_OPM_SESSION_TYPE_CHANGE_IN_PROGRESS

The method failed because the session is changing its type. No IOPMVideoOutput methods can be called when a session is changing its type. There are currently three types of sessions: console, disconnected and remote.

Severity (bit 31)1: failure
Customer (bit 29)0: Microsoft
NTSTATUS inside (bit 28)0
Facility38 (0x026) GRAPHICS
Code9499 (0x251B)