Custom Instructions for XPS420-A07.EXE:


Installation Instructions for the Universal (Windows/ DOS) 

format


Download file to Desktop

Use one of the methods below to flash the Bios.

Run the BIOS update utility from Windows 

environment

Run the BIOS update utility from  DOS environment 

(Non-Windows users)




Download file to Desktop


The  file XPS420-A07.EXE is using the Universal (Windows/ DOS) format 

and is designed to be directly executed from Windows environment.


Click Download now.
The File Download window 

appears.

Click the Save button.
The Save As window 

appears.

Select Desktop using the drop-down menu to the right of 

Save in.

Click the Save button.
A progress meter moves as the 

download is completed.

If necessary, click X in the upper right-hand corner of 

the Download Progress Window to close it upon completion.

NOTE: Shut down all other applications prior to running the 

BIOS update utility. The update utility reboots your system in order 

to get the new BIOS loaded. 


Run the BIOS update utility from Windows environment


Double click the Icon on your desktop labeled XPS420-A07.EXE.
The Dell BIOS Flash 

window appears 

 Click the Continue button.
The message Pressing OK 

will close all applications, shut down Windows, Flash the BIOS, then 

reboot. appears. 

Click the OK button.
The system will restart and the 

BIOS Flash will be completed.


Run the BIOS update utility from  DOS environment (Non-Windows 

users)


NOTE: You will need to provide a bootable DOS diskette. This 

executable file does not create the  DOS system files. 

Copy the file XPS420-A07.EXE to a bootable floppy.

Boot from the floppy to the  DOS prompt.

Run the file by typing Y:\XPS420-A07.EXE (where y is the 

drive letter where the executable is located).