it's not possible after booting from the new hard disk with EEPC on it. You'd have to boot from a BartPE or WinPE CD - then you could mount your old drive and access the data. You'll need to get a copy of a WinTech CD from your support desk, plus a copy of the SDB file from the machine record in EEM.
i don;t think you need VP signature to fix this issue..
Call your helpdesk, and get site it help etc.
it's seem that whoever inchage with safeboot maybe pushing the wrong file version to your machine.
previous 0xe0050001 errorissue https://community.mcafee.com/thread/29096