I had MS Office Home and Student 2007 on my laptop. Subsequently, I installed MS Office Home & Student 2013 in October 2013 and it was working fine till now. However, today when I click on the Word 2013 icon to work in Word, I am no longer able to open it and instead getting the following message:

"Problem with Shortcut - The item 'WINWORD.EXE' that this shortcut refers to has been changed or moved, so this shortcut will no longer work properly. Do you want to delete to delete this shortcut?"

Please let me know:

1) how can I rectify this situation?

2) Whether I can de-install and reinstall (on the same laptop), the same product ONCE AGAIN (I have the CD containing the official Licence)?