I have a client that is deploying Mcafee Endpoint Encryption, formerly known as Safeboot. The product integrates with Active Directory and the newest version can be managed through the ePO management console. Overall the product has experienced a number of problems. Most of these problems are documented and can be mitigated by defragmenting the disk or removing software that replaces the MSGINA, such as the HP Protect Tools.
The one problem that they have not been able to correct though is the Sector Chain is Invalid error. This error generally happens right after installation but can happen at any time. According to the support engineers I have spoken to the machine is generally unable to be recovered! This is a serious problem that Mcafee seems to not be addressing. They have said they are unable to replicate the problem but this issue has been brought up multiple times in different forums going back to 2008.
Come on Mcafee you need to fix this problem. You supposedly have hundreds of thousands of customers and you make the encryption used by the HP Protect Tools. You can fix this and need to ASAP.
Mcafee Knowledgebase Article