E4990A Help  
238 
Other topics about Maintenance 
System Recovery 
By executing system recovery, you can return the Windows operating 
system of the E4990A to the factory state or the user state at the setting 
the user performed save user state. 
The procedure of system recovery is described in both Installation Guide. 
Other topics about Maintenance 
 
Updating Firmware 
  Overview 
  Procedure 
Other topics about Maintenance 
Overview 
User can update E4990A firmware by themselves. The latest firmware can 
be downloaded from the http://www.agilent.com/find/e4990a 
Updating firmware does not include the following software update. 
•  Windows Operating System 
•  Driver for Windows 
•  Calibration Constant Data 
  Firmware update can only be performed with administrator 
account. 
Procedure 
  User should log in as an administrator authority to 
perform firmware update. 
  Download the latest firmware from the download 
site. It is prepared as execution file (E4990A_xx.xx.exe). 
  Run the E4990A_xx.xx.exe to extract the E4990A.msi. 
 
If you use your local PC to download,  save the file to a USB 
mass storage device in order to move it to E4990A, then 
connect the USB mass storage device into the front USB port of 
the E4990A. 
1.  Press System > Service Menu > Update Firmware. 
2.  In Open dialog box, select E4990A.msi, then press Open. Then the 
windows installer appears.