Use WMIC to list all the installed Windows updates, and output it to a file:
wmic qfe list brief /format:texttablewsys > UninstallKB.txt
Then, use Excel, or Word to extract the column with the HotfixID into a file.
Finally, use the following command to uninstall all the updates:
for /f %1 in (UninstallKB.txt) do start /wait wusa.exe /kb:%1 /uninstall /quiet /norestart
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes