HP Pavilion 503g Desktop PC (US)
HP Pavilion 503k Desktop PC (AP)
HP Pavilion 503n Desktop PC (US)
HP Pavilion 503w Desktop PC (US)
HP Pavilion 503x Desktop PC (US/CAN)
HP Pavilion 504a Desktop PC (AP)
HP Pavilion 504d Desktop PC (AP)
Windows XP
1.2 (15-Sep-2004)
HP Pavilion 500 Desktop PC series
This update resolves the "Unknown Publisher" issue when using "Updates from HP" or "Compaq Connections" powered by Backweb.
Malathy (DG Staff Member) on 27-Jul-2007
To get the HP Pavilion 503g Desktop PC (US) driver, click the green download button above. After you complete your download, move on to Step 2.
If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter HP Pavilion 503g Desktop PC (US) into the search box above and then submit. In the results, choose the best match for your PC and operating system.
Tech Tip: If you are having trouble deciding which is the right driver, try the HP Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To find the newest driver, you may need to visit the HP website. Most major device manufacturers update their drivers regularly.
To install your new driver on Windows:
Right-click the Start button.
Click "Device Manager"
Find your device in the list.
Right-click the device and select "Update driver"
Follow the steps on screen.
Restart your computer when done.
This keeps your computer working at its best.
Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.
For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.