Your best bet would be to contact your company EEPC administrator and get them to help you through recovery. It's not something usually attempted without training etc.
You'll need your machine dump from EPO that they have regardless.
Oh, and the workspace will always be empty until you load some sectors into it
could i got a guide document for this issue?
If you have already seen the Windows Splash Screen and the machine just sits there, then you might want to check the OS itself. The fact that you were able to reach that part means that you've already bypassed the Pre-Boot File System of EEPC.
How should I solve this problem? Rebuild the Windows OS?