The issue may occur if one of the following factors is true:
1. Security programs running in the background interfere with the
installation of Windows Updates.
2. The permission settings in the System Files and registry are inappropriate.
We will address some of the more common causes of this issue. It is
important that we attempt to connect to the Windows Update web site after
each step to confirm whether the resolution has worked. This will prevent us
from having to proceed with additional troubleshooting steps and provide us
with valuable feedback to further develop our support resolutions for you and
our future customers. Your assistance is greatly appreciated.
Suggestion 1: Temporarily disable the security programs for troubleshooting
Certain third party application can be the cause of the issue. Let's first
try disabling or uninstalling any third party security applications you may
have installed on the computer. Please be advised this is for troubleshooting
purposes only and once we have addressed the issue you should immediately
re-enable or re-install the applications. If the third party security
application is determined to be the cause, you will need to contact the
vendor about the applications' compatibility with Windows Update and obtain
their assistance in configuring the application to allow Windows Update.
For your reference, we have listed a few of the third party security
Sygate Personal Firewall
Norton Internet Security
Zone Alarm Firewall
Download Accelerator Plus
Once you have disabled or removed any third party security applications,
please check our access to the Windows Update web site again. If you
encounter problems disabling these programs, we recommend completely
uninstalling the program, for troubleshooting purposes only, from the
computer. Before uninstalling any application you may want to re-install,
please ensure that you have the CDs or files needed to re-install it, and
have enabled your Windows Firewall.
Letâ€™s now try Windows Update again and see if the issue has been resolved.
Please let us know if this step has resolved your issue. If it has not lets
proceed to the next step.
Suggestion 2: Reset permissions
This step will reset the permission settings on this system, which may take
some time. Your patience is highly appreciated.
Step 1: Download SubInACL (SubInACL.exe)
1. Please download the "subinacl.msi" from the following link and save the
installation patch on the Desktop:
2. Please go to the Desktop and double click the downloaded file to install
3. Please select "C:\Windows\System32" as the destination folder during the
installation (Note: We assume C:\ is the system partition). Later we will use
this tool to reset the current permission settings on the machine.
1. Click "Start", "Run", type: "notepad C:\reset.cmd" (without quotations)
and press "Enter". Choose "Yes" when you are prompted.
2. Copy the following commands and then paste them into the opened Notepad
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f
subinacl /subdirectories %SystemDrive% /grant=administrators=f
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=system=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=system=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=system=f
subinacl /subdirectories %SystemDrive% /grant=system=f
3. After pasting the above commands, please close the "Notepad" window.
Choose "Yes" when prompted to save the file.
4. Click "Start", "Run", type: "C:\reset.cmd" (without quotations) and press
"Enter" to run the commands pasted.
5. You will see a DOS-like window processing the request.
(NOTE: This step may take several minutes, please be patient. When it is
finished, you will be prompted with "Finished, press any key to continue".)