What is it?
Its a way for your Windows computer to
help you keep it safe by having it automatically check for and install
critical security updates offered by Microsoft. It is equivalent to
Microsoft's automated updates but the updates are downloaded from a JMU server
rather than the Microsoft server. This makes downloads faster and allows JMU
to delay updates for extra testing. Instructions for subscribing JMU
office computers are included on the StartSafe pages.
Student and home computers cannot use the JMU update service and should use
Microsoft's standard automated updates as described in
StartSafe.
Microsoft is constantly releasing critical security updates for its
products. If your computer does not have these updates, it is basically at the
mercy of any hacker, worm, or malicious web link on the Internet. And if your computer is at their
mercy, so is your identity, your privacy, and the integrity and proper
operation of the JMU network.
How often will installations occur?
Barring emergency updates, your
computer will probably do an installation once per month.
However, if your computer has not been kept up to date, numerous patches will
be needed when you first subscribe. In that case, your computer may install patches several days in a row.
If this starts to occur, please follow the StartSafe
procedures to manually download all currently available updates so your computer
isn't sitting on the network with known defects.
What if my computer is not turned on at the designated
installation time?
The installation will commence three minutes after you
turn the computer back on.
What if take my computer off the JMU campus for an extended length of time?
Follow the StartSafe procedures to run the
configuration tool and choose the option to
disable the WSUS service. This will return your
computer to its default configuration. The JMU WSUS service is not accessible
outside the JMU network and if you leave JMU, your computer will no longer update
itself nor warn you when it needs an update.
How do I know if its working?
An entry is
created in the system event log when patches are downloaded and ready to install
and again when they are actually installed. The source will be "Automatic
Updates".
If you visit the Microsoft Windows Update web site, you shouldn't see any
critical updates more than about a month old after your computer has been
subscribed to the service for a few days.
Ongoing status of the process is also available by viewing registry entries.
These are described below in the advanced information
section.
What products are covered?
Generally, only
Microsoft products are covered. These include:
- Windows 2000, XP, and 2003 operating system components. Generally these
are things that are installed in a default install by the OS CD.
- Windows Defender definition updates
- Microsoft Office
- Internet Explorer
- Windows Media Player
- Internet Information Server (IIS) cumulative patches
- Some SQL Server security patches
-
Windows Defender anti-spyware
What products are not covered?
- Non Microsoft products ( e.g. AIM, RealPlayer, Adobe Acrobat, etc. )
- Version upgrades ( e.g. Internet Explorer 5 to Internet Explorer 6,
Microsoft Windows 2000 to Microsoft Windows XP )
- Microsoft Development products ( e.g. Visual Basic, Visual C )
- Microsoft Entertainment products ( e.g. games )
-
What languages are supported?
Windows computer may be configured to work in different languages and
security updates are unique to each language configuration. The JMU server
currently only supports English language updates. If your computer is configured
to work in a language other than English, please set you computer up to use
Microsoft's update server as described in StartSafe.
How does it work?
The Windows Software Update Service (WSUS) is a
Microsoft product running on a JMU server. Each night, the server contacts
Microsoft and downloads any available critical updates.
Your computer queries the JMU WSUS server every 17-22 hours. If there are
updates available for your computer, your computer downloads and saves them. At
the scheduled installation time, they are installed. If the updates require a
restart, your computer is restarted. There are three possible scenarios on your
computer at installation time:
- You are logged into your computer at the scheduled installation time.
If you are logged into a Windows account with Administrative privilege
(typical use unfortunately), your computer will pop up a window telling you an update is available and
scheduled to be installed. Always allow the installation to complete at the
scheduled time. It will start a 5 minute timer. You can install
immediately, wait for the 5 minute timer to start the installation, or refuse
the installation. If you refuse the installation, your computer will quit
looking for updates. It will also not remind you of the pending installation.
You can start it manually by right-clicking the Automatic Updates icon in your
taskbar. However, it would be best to always allow the installation to
complete at the scheduled time. Doing otherwise defeats the purpose of the
automated software update service.
If you are logged into a Windows account without Administrative privileges,
you will see the 5 minute warning but will not be given an option to postpone
the installation.
- You are not logged into your computer at the scheduled installation time. It
is powered on.
The installation will commence automatically. Your computer
will restart if needed to complete the installation.
- Your computer is powered off at the scheduled installation time.
When your
computer is powered on after the scheduled installation time, it will realize
what happened and commence an installation sequence three minutes after it is
turned on. How it behaves depends upon whether or not you are logged on. See
items (a) and (b) above.
If your computer was previously set up with Automatic Update Notification,
where a popup message tells you updates are available or ready to install, you
will still get that message. You can choose to install then or wait for the
automatic installation at the scheduled time.
Updates are not automatically made available to your computer once
they are on the JMU WSUS server. JMU IT personnel must approve them before your
computer can access them. Various things are taken into consideration to
determine how long to delay an update's approval:
- The risk posed by the defect being fixed by the update. Considerations
include how easy the defect is to exploit, whether exploit code has been
published, whether the defect is accessible on JMU computers, whether
workarounds exist, the size of the population effected, the repercussions of
an exploit, and whether the defect is being actively exploited.
- The update's potential to cause unwanted side effects. Considerations
include how complex the update is, how large, and how large a population is
affected.
In general, critical updates will be released to the JMU population about a
week after they are released by Microsoft. Service packs, which are much larger
and more complex, may be delayed a month or more. Of course, you are always free
to use the Windows Update Site to download updates whenever you desire.
Possible Problems
When you click the "proceed" link to open the sus.hta file, you get a
blank screen or a script error in the sus.hta application.
The most common reasons for this are:
a. You clicked Save instead of Open on the file download window on
original SUS web page.

Close the error window by clicking the close button ( X )
and try running the service again
And try again.
b. You have disabled Windows Script Host (WSH):
The symptoms will be an error window like the one above except the line will
be 12 and the Error will be "initialization failed".
You can download Windows Script Host at
http://www.microsoft.com/downloads.
Do a search on "wsh". You want version 5.6. Some people disable WSH to decrease
risk. The procedure to reverse this depends upon how it was disabled.
-
Additional Information
Microsoft documentation
Third
party support forum
WSUS Wiki