Review History of Installed Windows Updates
Question: How can I see a list of the Windows Updates I have already installed on my computer?
Answer: You can view a history list of the installed Windows Updates by doing the following:
Windows Vista: 1) Open Windows Update by clicking on the Start Button. Click on ‘All Programs‘ and then ‘Windows Update‘.
2) In the left sidebar of the Windows Update window, click ‘View Update History‘. There, you will be able to see a list of all Windows Updates installed.
Windows XP 1) Open Internet Explorer and click on ‘Tools’. Int he drop-down menu, click on ‘Windows Update’.
2) Wait for the wait to load and then choose ‘Custom‘. Wait for the page to load. Then in the left sidebar, click on ‘History‘.