Q: I'm getting updates for my machine from my corporate patching solution but I want to check Microsoft Update. Is that possible?

A: If you're receiving updates from something like Windows Software Update Services or System Center Configuration Manager, your system will be configured to get updates from your corporate update location. Your Windows Update screen will look like this:

Notice it says that updates are managed by your system administrator, but you have a link to check online from Microsoft Update. Click this link and the system will check Microsoft Update, which might have newer updates.

Under normal circumstances, you should just take the updates pushed by your administrators. But you can check directly online if required.