I’ve complained (and so have many others) about the Apple Software Update
functionality — especially now that it suggests that I update software I never
had installed (Safari)!
On Vista (and XP is probably similar), there’s a scheduled task that runs once
a week to look for updates.
To stop that from occurring, click the start/windows logo button, and type
"TASK" into the search box.
Select Task Scheduler. (You may need to provide an administrator password or just
click continue acknowledging that you’re about to make system changes).
Expand the Task Scheduler library node and then click the Apple node.
You should see on the right side an entry named, AppleSoftwareUpdate.
Click that entry and either right click and select Disable, or click the item and
select the Disable option in the Action list on the right side of the Task
Scheduler.
Although XP’s task scheduler has a very different user interface, the concept
is identical, and you should be able to find and disable the AppleSoftwareUpdater in
a similar manner.
Here’s hoping that this stops the annoying "Install Safari" now
option.
Note that you should occasionally check for updates manually in ITunes if you
disable this functionality. It’s available in the Help menu (Check for Updates).
QuickTime checks for updates (according to the documentation and settings), only
when the application is running (brilliant!).
Or, if you’re not comfortable with completely disabling the auto update
feature, you can change the frequency of update checks using the task scheduler.
Instead of disabling the task as shown above, decrease it’s frequency.
Don’t disable it as suggested above, instead, right click on the
AppleSoftwareUpate line, and select properties.
Click the Triggers Tab, then select the first trigger (in my example, it’s
labeled Weekly) and click the Edit button:
This shows the details of the weekly trigger. In the screen shot above, I’ve
changed it from weekly to once a month (on the last day). I’d recommend you
leave the advanced settings as is and just modify the frequency to whatever
you’d like. Once a month is reasonable — then you’ll only be
annoyed by this update once a month rather than once a week.
If you’re paranoid about security, you’ll probably just need to accept
the fact that Apple’s update for this is obnoxious and maybe if enough people
complain — Apple will realize the error of their ways and provide a way to
ignore new Apple Software that you don’t want to install.