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30 November 2008

Device Drivers

Device Drivers

  • Software that interprets between the OS and the device

  • Information needed for driver installation contained in an INF file

  • The actual driver is a SYS or DLL file or a combination of files

Update a Driver

  • Find device in Device Manager and double-click it

  • On Driver tab, click Update Driver button

  • Follow the prompts

Signed Drivers

  • Used in Windows XP to ensure driver integrity

  • Warning appears if unsigned driver is attempting to install

  • Look online for updated, signed drivers when possible

  • Install an unsigned driver only as a last resort

Identifying a Resource Problem

  • Look for exclamation point icon in Device Manager
  • Double-click device to find out what’s wrong with it

Disable a Device

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