If you have a virus scanner download the most recent defs. and run a full scan ... if the virus was on the D drive ... when you reinstalled it could have simply migrated back ... got to kill it all or it will grow back like a fungus 
If you don't have AV software you can download trials from nortan or Mcafee that will serve your purpose.
If you don't have AV software you can download trials from nortan or Mcafee that will serve your purpose.