Older Mac Does Not Show Software Update

Software

When I open iTunes and iPhoto (and some others) I'm told that there are new versions/updates available. When asked whether I want to download them now, I click YES and it takes me to Software Update (as usual). However, when Software Update launches and searches for updates, it tells me that there are no new updates available. Here are the steps I've taken so far:
Reset manual settings (?? all I know is the Apple guy told me to restart the computer holding Command, Option, P and R I think)
Repaired permissions
Repaired disk (worked somewhat because it showed me the available updates but when I went to download them they said the server was unreachable and when I re-opened Software Update the updates were no longer visible)
Does anyone have any other brilliant ideas???
THANKS!
PS: The last successful update was on March 20 2010 with Safari 4.0.5 and a Digital Camera update.

Apr 11, 2010  In Software Update you could also check to see if any updates have previously been ignored. This is a User setting, that can be reversed from the Software Update menubar. Software Update Reset Ignored Updates. +You will need to run Software Update (Check now). Find the Right Software Often, you'll have to add or update your old Mac's software to prepare the computer for a new role. If you're missing any applications, you'll need to find compatible. Jul 03, 2019  What is clear though, is that users of older Mac devices will likely find that the Windows 10 May 2019 update will fail to install. Older, in this instance, is being defined as Mac devices prior.

Older Mac Does Not Show Software Update Windows 10

May 15, 2020  On your Mac, hold down the Option key, click the Apple menu, and choose System Information or System Report. From the list on the left, select USB. If you see your iPhone, iPad, or iPod under USB Device Tree, get the latest macOS or install the latest updates. If you don't see your device or still need help, contact Apple Support. Software Update doesn't show available updates. Ask Question Asked 6 years, 11 months ago. (Actually this answer of mine does not provide a solution but suggests some points to start digging.). Software Update command (on Mac) not listing all the updates.

Older Mac Does Not Show Software Updates

MacBook, Mac OS X (10.5.8)

Older Mac Does Not Show Software Update 2017

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