Programmes not responding

[Robert15]

Since installing Window 10 I cannot open Word.

 

[Trouble]

Since installing Window 10 I cannot open Word.

Assuming you mean winword.exe an application within the Microsoft Office Suite of Applications.
Have you tried to repair your installation.
Sometimes that helps.
Depending on your version, the repair feature / function can be different.
Typically using the Programs and Features applet in the Control Panel, select Microsoft Office and use the "Change" link at the top and then choose repair.
That seems to work for some folks, while others have found that reinstalling the office suite worked for them.