Concept

LOGO.SYS

Résumé
LOGO.SYS is a core system file used by the Windows 9x family of operating systems to display its boot-up message. LOGO.SYS is a system file that is used as part of the startup process found in the Windows 9x family of operating systems such as Windows 95, Windows 98, and Windows Me to display their boot screens. It is not present in the Windows NT family of operating systems such as Windows NT 4.0, Windows 2000, and Windows XP, as they used various different methods to display their boot screens. There are three variants of the file: LOGO.SYS is the "Starting Windows" message, with the Windows logo. The file is located in the root directory of the boot drive. This is usually , but with drive compression, like DriveSpace, this is the host drive (often ). The default LOGO.SYS file is also stored in IO.SYS and used by MS-DOS during startup if LOGO.SYS could not be found. The display of the logo can be disabled by adding a LOGO=0 setting to the Options section in the MS-DOS 7 configuration file MSDOS.SYS. LOGOW.SYS is the "Please wait while your computer shuts down" (later "Windows is shutting down" in Windows 98) message. The file is located in the Windows directory, which by default is . The Windows logo is only shown in Windows 95 and 98 (in Windows 95, only the Microsoft Windows 95 wordmark is displayed). Windows Me simply cuts to black after shutting down or cuts to the LOGOS.SYS screen, as it lacks a LOGOW.SYS screen of its own (even if the LOGOW.SYS file is provided in the OS, the shut down screen will still not be displayed). No error will be shown if the file cannot be found. LOGOS.SYS is the "It is now safe to turn off your computer" message. The file is located in the Windows directory. This message is displayed when Windows has successfully shut down to MS-DOS but is not configured to return to the prompt (COMMAND.COM) again. On systems with proper ACPI support and ATX power supply, the PC may power down instead. If the file cannot be found, the same message is displayed in text mode.
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