Cannot upgrade extension DATALOSS2000 because an extension with that name is already present in a partially installed state (error appears when upgrading Data Loss Prevention Endpoint Extension)
Technical Articles ID: KB84948
Last Modified: 6/15/2015
Find this KB but haven't tried on customer side, I will post result on Friday.
Above KB article should fix the issue. Please get the support if issue persists.
@Satish - no it's not working.
Still McAfee support is working on it.
Please share the outcomes, once it is done.