Some sort of keyboard filter app would be needed. But such is not asked for a lot so there may be no ready to use or friendly app for this.
Research KEYBOARD MAPPER APPS and see if any do this.
http://superuser.com/questions/438722/disable-number-pad-in-windows-7 looks to be a solution using AUTOHOTKEY but your new to PC or non-programmer may not be able to use that idea.
To keep it simple, i want to stop/unlink shift+numpad buttons from performing the functions on the keys such as PgUp, End, PgDn etc.
Can this be done?