Tente a resposta que você vinculou:
Right-click on taskbar
Go to Properties, Start Menu
Check "Store and display a list of recently opened programs" under privacy.
Mas depois faça isso:
Open the registry editor (Start -> Run -> regedit)
Go to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Add a key or amend the value for the following:
NoRecentDocsMenu 1
NoRecentDocsHistory 1