Hi,
Start - type Search box -> calculator find at top of list - Right Click on - COPY then go to a blank area
of the Desktop - right click - Paste. Then you can paste into the Start Menu as desired.
Normally it is here :
Start - All Programs - Accessories - Calculator
An excellent 3rd party Calculator - Free
Karenware - Calculator - Free
http://www.karenware.com/powertools/ptcalc.asp
Hope this helps.
Rob - Bicycle - Mark Twain said it right.