All of Dell Latitude E5500 drivers below support for Microsoft Windows XP:
- IDT 92HDxxx HD Audio
This Sound Audio has resolved issue with Systray error message that encountered during restart.
File Size: 14 MByte
Download driver from here
Latest Updated: April 22, 2009
- SRS Premium Sound Enhancement Application
File Size: 2 Mbyte
Latest Updated: May 21, 2009
This latest driver version has support for newly released systems and it support Microsoft Windows XP 32-Bit
Download from here
- System BIOS update
File Size: 1 Mbyte
Latest Updated: December 12, 2009
This bios updated has fixed:
- enhanced INT 19h support
- removing HDD accoustic support
- fixed some issue such as unable to set Asset when Admin password has been set
- updating computrace OPROM
- Add some workaround for Windows issue make printer connected for docking station to intermittently disappear after re-dock.
Download BIOS from here

This BIOS update has updated computrace OPROM 887, modified some battery settings such as S3 Crytical Battery wake up value 5% to 8%, critical battery wake up prevent value from 2% to 5% and battery low blinks, battery LED value from 2% to 10%. This Update also changed “Inter Virtualization Technology” default setting from disabled to enabled.
This ACPI BIOS Update support for Toshiba Satellite E105-S1402, E105-S1602, E105-S1802.
Driver Version: 1.80
File Size: 4.3 Mbyte
Latest Updated: November 23, 2009
Download BIOS Update for Satellite E105 from here

Below some update for Toshiba NB200 BIOS:
This BIOS update has modified F5 hotkey function for Microsoft Windows 7 and WINP function. This BIOS update also update computrace option ROM for fixing intermittent Touchpad and Video drier that will work on Wondows 7 when computrace has been enabled

Driver Version: 1.60
File Size: 4.1 Mbyte
Latest Updated September 21, 2009
Download Driver from here

Tis BIOS update can be applied on:
Toshiba mini notebook NB200-SP2903R, NB200-SP2903C, NB200-SP2903A, NB200-SP2905A, NB200-SP2905R, NB200-SP2905C, NB200-SP2910A, NB200-SP2906C, NB200-SP2910C, NB200-SP2911A, NB200-SP2911C, NB200-SP2904R, NB200-SP2904A, NB200-SP2907R, NB200-SP2904C, NB200-SP2907C, NB200-SP2906R, NB200-SP2907A, NB200-SP2909C, NB200-SP2909R, NB200-SP2909A, NB200-SP2908C, NB200-SP2908R, NB200-SP2908A, NB200-SP2912C, NB200-SP2911R, NB200-SP2912A, NB200-SP2906A, NB205-N210, NB200-SP2910R, NB205-N310/BN, NB205-N311/W, NB205-N211, NB205-N312/BL, NB205-N313/P

- This ACPI flash BIOS has added some features such as: Support for Microsoft Windows 7 Container ID Function, TVAP “Alarm Power On” that you can find on Windows 7 tools, and a BIOS update method for Linux users for using USB memory.
- This BIOS update also fixing setup menu string error when you choose French menu.
- The CMOS Year/Month/Date default will be set to 2009/07/01 when your RTC battery failure occurs.

This ACPI Flash BIOS will be suitable for Toshiba Mini Notebook NB 105-SP2801A, NB 105-SP2801R, NB 105-SP2801C, NB 105-SP2802C, NB 105-SP2802A, NB 105-SP2802R

BIOS Version: 2.10
Latest Update: September 2009
File Size: 4.1 Mbyte
Download ACPI Flash BIOS from here

This ACPI Flash BIOS has
- Improving some features such as brightness is dark enough when using hotkey for adjusting brightness to level 1, HDD protection icon will appear “unprotected” when your computer been moved for more than 5 seconds, Evemthough built-LAN set to disabled on BIOS setup menu, wake-on-LAN can be set to “Enabled”
- Added support for Ducati Logo in European Model, additional computrance function in U.S. models, your computer also cannot boot to the OS when bootable hard disk been set to eSATA in the BIOS setup menu and internal hard drive has been unplugged.
- This bios also changed “Enter Password” to “Enter Current Password”
- Changing “Remote Power On Off” default Setting on BIOS Setup Menu from Enabled to Disabled.

For Toshiba Satellite U500 or Toshiba Satellite U505
Version: 1.50
File Size: 4.5 Mbyte
Download from here

For Toshiba Satellite M505
Download Update ACPi BIOS from here