I cant update my computer. i receive error 0x80070424. im running vista home premium

Error Message:
Windows Update Error: 0x80070424. Windows Update has encountered an error and cannot display the requested page.
Translation:
Your system runs Windows XP and you can’t obtain Windows updates because of an error that occurs each time you visit the Windows Update site.
Solution:
Because the problem may be the result of an external contaminant, first scan your system for viruses and run an antispyware application, such as Spybot Search & Destroy (free; www.safer-networking.org) or Ad-Aware SE Personal (free; www.lavasoft.com). If these steps don’t fix the error, you can try one of two workaround solutions.
The first one involves editing the Registry, so make a backup of your system before modifying any Registry settings because editing them incorrectly could leave your system inoperable. Then access the Registry by clicking Run from the Start menu, typing regedit in the field, and clicking OK. In the Registry Editor, locate the HKEY_LOCAL_MACHINE\SYSTEM\CURRENTCONTROLSET\CONTROL\WINDOWS key and select the CSDVersion value from the right pane. Next, right-click the value, select Modify, type 0 in the Value Data field, and click OK.
After exiting the Registry and rebooting the PC, try to access the Windows Update site. If you can’t, try the second workaround solution. Open the Start menu and click All Programs, Accessories, and Notepad. In Notepad, type the following commands (Smart Computing subscribers can access this article online and copy/paste this text), pressing ENTER after each line:
cd /d %SystemRoot%\system32
regsvr32 comcat.dll /s
regsvr32 shdoc401.dll /s
regsvr32 shdoc401.dll /i /s
regsvr32 asctrls.ocx /s
regsvr32 oleaut32.dll /s
regsvr32 shdocvw.dll /i /s
regsvr32 shdocvw.dll /s
regsvr32 browseui.dll /s
regsvr32 browseui.dll /i /s
regsvr32 msrating.dll /s
regsvr32 mlang.dll /s
regsvr32 hlink.dll /s
regsvr32 mshtmled.dll /s
regsvr32 urlmon.dll /s
regsvr32 plugin.ocx /s
regsvr32 sendmail.dll /s
regsvr32 scrobj.dll /s
regsvr32 mmefxe.ocx /s
regsvr32 corpol.dll /s
regsvr32 jscript.dll /s
regsvr32 msxml.dll /s
regsvr32 imgutil.dll /s
regsvr32 thumbvw.dll /s
regsvr32 cryptext.dll /s
regsvr32 rsabase.dll /s
regsvr32 inseng.dll /s
regsvr32 iesetup.dll /i /s
regsvr32 cryptdlg.dll /s
regsvr32 actxprxy.dll /s
regsvr32 dispex.dll /s
regsvr32 occache.dll /s
regsvr32 occache.dll /i /s
regsvr32 iepeers.dll /s
regsvr32 urlmon.dll /i /s
regsvr32 cdfview.dll /s
regsvr32 webcheck.dll /s
regsvr32 mobsync.dll /s
regsvr32 pngfilt.dll /s
regsvr32 licmgr10.dll /s
regsvr32 icmfilter.dll /s
regsvr32 hhctrl.ocx /s
regsvr32 inetcfg.dll /s
regsvr32 tdc.ocx /s
regsvr32 msr2c.dll /s
regsvr32 msident.dll /s
regsvr32 msieftp.dll /s
regsvr32 xmsconf.ocx /s
regsvr32 ils.dll /s
regsvr32 msoeacct.dll /s
regsvr32 inetcomm.dll /s
regsvr32 msdxm.ocx /s
regsvr32 dxmasf.dll /s
regsvr32 l3codecx.ax /s
regsvr32 acelpdec.ax /s
regsvr32 mpg4ds32.ax /s
regsvr32 voxmsdec.ax /s
regsvr32 danim.dll /s
regsvr32 daxctle.ocx /s
regsvr32 lmrt.dll /s
regsvr32 datime.dll /s
regsvr32 dxtrans.dll /s
regsvr32 dxtmsft.dll /s
regsvr32 webpost.dll /s
regsvr32 wpwizdll.dll /s
regsvr32 postwpp.dll /s
regsvr32 crswpp.dll /s
regsvr32 ftpwpp.dll /s
regsvr32 fpwpp.dll /s
regsvr32 wuapi.dll /s
regsvr32 wuaueng.dll /s
regsvr32 atl.dll /s
regsvr32 wucltui.dll /s
regsvr32 wups.dll /s
regsvr32 wuweb.dll /s
regsvr32 wshom.ocx /s
regsvr32 wshext.dll /s
regsvr32 vbscript.dll /s
regsvr32 scrrun.dll mstinit.exe /setup /s
regsvr32 msnsspc.dll /SspcCreateSspiReg /s
regsvr32 msapsspc.dll /SspcCreateSspiReg /s
exit

Next, save the document as Filefix.bat and close Notepad. Find and double-click this file. Doing so re-registers the necessary system files and ensures Internet Explorer is working as it should. You should be able to access the Windows Update site and download the required updates for your PC.

Some spyware, adware, viruses block the windwows update sites.

If this doesn't work
The above explanation was for a previous Version of BITS but, there has been
an update for BITS since Vista came out.
<http://support.microsoft.com/kb/939159>

Is BITS disabled ? It can be set to Manual and the system will update
successfully but, will not update if BITS is Disabled.
Suggest you run the BITS Repair Tool to see if that helps resolve the issue
after installing the update for it:
<http://support.microsoft.com/kb/940520>
-=-


Ensure you do not have "Vundo". Clean it up if you do.

It seems possible that your Windows installation has been deliberately
damaged by a trojan (Vundo, along any uninvited guests. (SDBot and ZLOB, all
protected by a rootkit.)) so as to prevent you updating your system or
removing the trojan.

Your first priority must be to cleanse your PC of all malware.

A very good antimalware app is SUPERAntiSpyware.

There is a free version (on demand scanning only), the paid for version
includes active monitoring, similar to Windows defender:
<http://www.superantispyware.com/>
The trial version of SUPERAntiSpyware Pro (SAS):
<http://www.superantispyware.com/superantispywarefreevspro.html>



Can't fix BITS - Windows Update
<http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?&lang=en&cr=US&guid=&sloc=en-us&dg=microsoft.public.windowsupdate&p=1&tid=307d2 1a2-eb9a-4859-b139-78997305deff&mid=307d21a2-eb9a-4859-b139-78997305deff>


This will give you a starting point for your troubleshooting anyway.


Please let us know if the problem remains


I hope this helps (it should)!


Download this "Update for Background Intelligent Transfer Service (BITS) 2.0 and WinHTTP 5.1 (KB842773)"

from link below

http://www.microsoft.com/downloads/details.aspx?FamilyId=B93356B1-BA43-480F-983D-EB19368F9047&displaylang=en

It should fix your problem if you are using Genuine Windows.