Hey Udaya,
You might need to first remove Adobe PDF printer manually .
For this, please go to Start > Devices and Printers, right click on 'Adobe PDF' and select 'Remove device' option from the drop down list.
Then, repair Acrobat from the Help menu. This will consequently create Adobe PDF icon at the same location.
Now, try again as the PDF printer must work correctly.
Regards,
Anubha