Try to open Word 2010 programs in application safe and check.
Go to Start->Click on All programs-> Accessories-> Run->
Type winword /safe and Click on ok (Note: There should be a space between d and ‘/’)
If it works fine in application safe, then try to disable the adobe addins.
How to disable Add-ins in Word 2010:-
Step1: Click the File Tab in Word 2010 and Click Word Options.
Step2: In the left hand side of the Word Options dialog box, click Add-Ins.
Step3: Under ‘Manage’ Click the COM Add-ins
Step4: Uncheck all the Add-Ins listed under COM Add-ins.
Step5: Click close and restart Word.
Ganesh Kumar N