Recovering from a compromised account
Instructions on recovering from a compromised account can be found here (requires eID password).
Recovering from an infected computer
If you live on-campus, you may have access to JMU Computing Support services to help you recover. If you live off-campus, generally, you'll need to contract with an outside support provider if you cannot do the work yourself and it can't be handled over the phone with the JMU Computing HelpDesk.
Generic instructions for the recovery of an infected Windows computer can be found here.