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1. Basic System Board Hacks > 8. Avoid the Legacy USB Option

Avoid the Legacy USB Option

Save yourself from boot-up delays and Windows device detection confusion.

The Legacy USB setting tells the BIOS and operating system to detect and enable USB keyboards and mice in the absence of normal PS/2-port devices. Setting this parameter to Yes, On, or Enabled is important and necessary if you have only a USB keyboard and mouse and need to use them in non-Windows operating systems, such as DOS, OS/2, some self-booting diagnostic/maintenance programs, or the early stages of some Linux setups.

If this parameter is on or enabled and you use a normal PS/2-port connected keyboard, with no USB-connected keyboard attached, Windows 95 and 98 may hang up looking for a USB keyboard that does not exist. Disable or turn this setting off, or you could be fighting with the system for a long time and it will probably win. Your system may also boot up faster if it does not have to waste time looking for a nonexistent device.


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