How to install windows xp(32 bit) on compaq presario v3820tu

The Compaq Presario V3820TU comes with the default Vista OS installed which you might want to change to Windows XP 32 bit OS. Searching for the appropriate drivers and their installation took me almost a week. So I am creating this article to make the task easier for someone who would like to attempt the same.

Instructions

Difficulty: Moderately Easy

Things You’ll Need:

• USB Floppy drive
• Floppy
• XP 32 bit installation CD

1. To start off you would need a USB floppy drive which you need during windows installation. This is because the SATA hard disk is not recognized by the OS during installation. You would need to provide drivers additionally
2. When the installation starts it asks you to press F6 in case you want to install additional drivers. You would need to exercise that option.
3. The drivers that you need are the 'Intel Matrix Storage Drivers' which you can download from the Intel site. You should download the drivers that specify that they need to be pre-installed using F6.
4. These drivers need to be copied to a floppy and when during installation ( after pressing F6) you are asked to specify additional drivers place that floppy in the USB floppy drive and install the four listed drivers manually.
5. Windows will say that it already had a driver available for the drivers other than the first in the list. You can use the default windows drivers for them. This process can be done only using a floppy.( There might exist an alternative method but even after one week of googling I am yet to find one). After this is done the hard disk is recognized by XP and the installation continues normally.
6. The list of drivers.
   Chipset driver :
   -----------------
   http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&swItem=ob-54070-1&jumpid=reg_R1002_USEN
7. Microsoft UAA Bus Driver for High Definition Audio: (Must be installed before audio and modem driver)
   --------------------------------------------------------------------------------------------
   ftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33867.exe
8. Conexant High Definition Audio Driver:
   ------------------------------------------------------
   ftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34386.exe
9. Modem driver:
   ---------------------
   ftp://ftp.hp.com/pub/softpaq/sp34501-35000/sp34777.exe
10. Graphics driver
    -----------------------------
    Go to http://downloadcenter.intel.com/Product_Filter.aspx?ProductID=2800&lang=eng , select the operating system and you will get the driver
11. Ethernet driver: Marvell Yukon 88E8039 PCI-E Fast Ethernet Controller
    --------------------------------------------------------------------------------
    http://www.marvell.com/drivers/driverDisplay.do?driverId=103
12. Intel(R) PRO/Wireless 3945ABG Network Driver:
    -------------------------------------------------------
    ftp://ftp.hp.com/pub/softpaq/sp35001-35500/sp35426.exe
13. Wireless driver for broadcom:
    ---------------------------------
    ftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34152.exe
14. SD/MMC/xD Card Reader driver:
    -------------------------------------
    ftp://ftp.hp.com/pub/softpaq/sp32501-33000/sp32825.exe
15. Touch pad Driver:
    --------------------
    ftp://ftp.compaq.com/pub/softpaq/sp25501-26000/SP25796.exe
16. HP quick launch driver:
    -----------------
    ftp://ftp.hp.com/pub/softlib/software8/COL18360/ch-47422-1/sp33258.exe
17. For installation start with the chipset driver and then the graphics driver. You should not face any trouble for these two.
18. Next install the Microsoft UAA High Definition Audio driver.Although it does not ask for restart, you should restart after the installation ends.
19. Install the conexant audio driver and the modem driver which would mostly fail in installation after they extract the files. In case they fail follow the remaining steps,else you can skip them
20. Right click on my computer,select properties and in that go to the tab 'Hardware'.In that click 'device manager'
21. Right click on "Audio device on High Definition Audio Bus"(shown under 'other devices') and click Update driver
22. Select "Install from a list or specific location"
23. Click Next. Then select "Don't search, I will choose the driver to install
24. Click Next and then select "Sound, video and game controller" from the list
25. Click Next and then click Have Disk
26. Click Browse C:\swsetup\sp34386 folder and select the .inf file and click open and Continue with the onscreen instructions.
27. Again in 'other devices' in 'device manager' right click on "Modem device on High Definition Audio Driver" and select update driver
28. Follow steps similar to what was done for the earlier driver but in place of "Sound, video and game controller" select "All devices".
29. After clicking Have Disk browse to C:\swsetup\sp34777\V32 and select the .inf file. Click open and continue
30. Unzip the Ethernet driver file( which you should have downloaded from the link provided earlier)
31. For Ethernet driver in 'device manager', right click on '1394 net adapter' under 'network adapters' and click update driver
32. Follow the procedure adopted as in the above two cases. Here it will not ask you to choose the type of device. It is automatically detected as network adaptor.
33. After Have Disk,click browse and go the folder where you have the unzipped Ethernet driver file and select the .inf file,click open and continue.
34. For the other drivers, the installation is pretty straight forward.
35. You should have by now finished the transition and have the laptop running XP without any problems.