In another post someone asked the question: How to permanently remove/ban programs from the Start Menu Recent List? (Since manually deleting them will only get them back on once the program is started again.) The sole answer gave a suggestion to "switch the feature off". This answer though...
customization
feature settings
help request
manualmanagement
powertoys
program control
program management
recent items
shortcuts
start menu
tweakui
uninstall apps
usage patterns
user interface
user preferences
windows 7
windows features
windows xp