What causes Error
0x80072EFD
This error may occur when access to the Windows Update site is
blocked because one or more of the following conditions is true:
#
A firewall on your computer or local network is interfering with
your connection to the Windows Update site.
#
The Windows Update Web site is mapped to a specific IP address in
the HOSTS file on your computer. Microsoft does not recommend the
use of entries for the Windows Update Web site in the HOSTS file
because the IP addresses for the site can change.
NB: This issue has been reported with Internet enhancement programs
(such as TweakMASTER DNS) that can add entries to your HOSTS file
without your knowledge.
#
The MTU setting on your router is too high/low.
#
Proxy server settings are interfering with your connection to the
Windows Update site.
# Norton
Internet Security 2003 may be blocking access.
To try and resolve
the error 0x80072EFD, use the following tips... After each tip test
to determine whether the issue is resolved.
Resolution Suggestion One:
#
Test your Internet connection to Windows
Update.
A simple solution but one that works
in many circumstances!
Test to determine if
your Internet connection is preventing you from reaching the Windows
Update Web site. To do this, visit the following Microsoft Windows
Update Web site to determine if you can download the Iuident.cab
file:
http://windowsupdate.microsoft.com/v4/iuident.cab
If a file download dialog box appears, the problem is not with your
Internet connection. Click Cancel. If you cannot connect to this
link, and you receive a "Page Cannot Be Displayed" error message,
your Internet connection is preventing you from reaching the Windows
Update site.
-----------------------------------------------
Resolution Suggestion Two:
#
Reconfigure or update your firewall program.
|
|
|
Reconfigure or update
your firewall program so that Windows Update is not blocked, and
then try to update your computer again by using Windows Update. For
information about how to reconfigure or update your firewall
program, see the documentation that was included with the program,
view the Help files for your program, or contact the manufacturer's
technical support department. |
e.g It my mean Opening TCP/IP 443 in both
directions for this process: %windir%\system32\svchost.exe
-----------------------------------------------
Resolution
Suggestion Three:
#
Remove Windows Update entries from the HOSTS
file.
To remove Windows Update entries from the HOSTS
file, follow these steps:
-Click Start, point to All Programs, point to Accessories, and then
click Notepad
-On the File menu, click Open.
-In the Files of type box, click All Files.
-In the Look in box, locate the following folder:
C:\Winnt\system32\drivers\etc\
-Double-click to open the hosts file.
-Remove any lines that contain entries for Windows Update
(http://v4.windowsupdate.microsoft.com).
-On the File menu, click Save.
-Close Notepad.
I have seen the 0x80072EFD error resolved by this
tip many times...
-----------------------------------------------
Resolution
Suggestion Four:
#
Run the IPCONFIG /FLUSHDNS command.
To run the ipconfig /flushdns command, follow
these steps:
-Click Start, and then click Run.
-In the Open box, type cmd, and the click OK.
-At the command prompt, type the following command, and then press
ENTER:
ipconfig /flushdns
Close the command window.
-----------------------------------------------
Resolution
Suggestion Five:
#
Add Windows Update addresses to the trusted
sites list.
To add Windows Update addresses to the trusted
sites list, follow these steps:
-Open Microsoft Internet Explorer.
-Click Tools, and then click Internet Options.
-Click the Security tab, and then click Trusted Sites.
-Click Sites, and then click to clear the Require server
verification (https:) for all sites in this zone check box.
-In the Add this Web site to the zone box, type each of the
following addresses, and click Add after each address:
http://Windowsupdate.microsoft.com
http://V4.Windowsupdate.microsoft.com
https://v4.Windowsupdate.microsoft.com
http://Download.Windowsupdate.com
http://V5.Windowsupdate.microsoft.com
https://v5.Windowsupdate.microsoft.com
-Click OK to close all Internet Options windows.
-----------------------------------------------
Resolution
Suggestion Six:
#
Add Windows Update addresses to the proxy
settings exceptions list.
If your Internet connection uses a proxy server,
add the Windows Update sites to the proxy settings exceptions in
Internet Settings. To do this, follow these steps:
-Open Internet Explorer.
-Click Tools, and then click Internet Options.
-Click the Connections tab, and then click LAN Settings.
-Click Advanced, and then type the following text in the Exceptions
text box (all in one line):
windowsupdate.microsoft.com;v4.windowsupdate.microsoft.com;
download.windowsupdate.com
Note If you are running third-party proxy or firewall
software, see your product documentation for information about how
to add these sites to the exception list for those applications.
Click OK to close all Internet Options windows.
-----------------------------------------------
Resolution
Suggestion Seven:
#
Change the MTU setting on your router.
Yours ISP's MTU for their connection may not be
correctly setup on your Broadband router and/or your computer.
Please contact your ISP's support for more assistance on this.
However the following articles may be of help:
http://www.microsoft.com/windowsxp/using/networking/
learnmore/ppoe.mspx
http://support.microsoft.com/default.aspx?scid=kb;en-us;283165
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Resolution
Suggestion Eight:
#
Configure Norton Internet Security 2003.
Norton Internet Security 2003 may be blocking
Windows Update. try this:
-Open the Norton Internet Security 2003
Application
-Click on "Norton Internet Security" button located on the left side
-Click on "Personal Firewall" located on center
-Click on "Configure" button on bottom right side
-When dialog box appears, click on "Program Control" tab
-Scroll down and find and click on "Microsoft Generic Host Process
for Win32 services"
-Then click on "Modify" bottom at button of scroll box.
-When dialog box appears, click and choose "Permit" button
-Close all boxes and close Norton.
-Reboot your computer.
