0x0000027E
ERROR_PNP_REBOOT_REQUIRED
Device will not start without a reboot.
win32decimal 638
Matched as: the code as given (hex)
Log a case with no specific solution
Source: System Error Codes (500-999) - Win32 apps · CC-BY-4.0 (MicrosoftDocs/sdk-api, repo license verified 2026-10-09) · retrieved 2026-10-09