Visual Studio Remove Items from the Recent Projects List

Open Visual Studio
Click File
Select Recent Projects and Solutions
Click Clear Recent Project list

If you want to clear recent files which are opened.
Open Visual Studio
Click File
Select Recent Files
Click Clear Recent File list


If you want to show more recently used list. Follow below settings.
Open Visual Studio
Tools -> Options
Select: Environment node
Select: General Node
You will find: items show in recently used lists
You can increase the number..