Still Infected Machines not clearing after a full system scan

Hi All,

I have an issue with 3 machines on my network. They are constantly re-appearing as Still Infected Machines for the past three 3 weeks even after a full system scan in safe mode. 

Symptom: Repeated detection of DWHxxxx.tmp as a threat when a Defwatch scan runs on Quarantined items.

Symptoms
Infected DWH***.tmp files are detected in the user profile temp directory by AutoProtect.

I understand that SEP 12 RU 2 will fix this issue but Im still on SEP 12 RU 1. In the meantime how do I get rid of this issue?

I am not comfortable with disabling the quarantine scan on virus definition update.

• I was thinking of manually deleting the contents of the Quarantine folder on the infected machine(Locate the Quarantine folder ,open it and delete everything inside that folder), but I am not sure if that will solve the issue.
• Delete everything in temp folders.

Any suggestions on how to resolve these Still infected machines/Newly infected machines.

Thank you