Well, I'm not trying to create the BackUp while the PC is in use...unless in use refers to the act of booting such PC and run imagew from the boot media.
These are the steps I have taken:
1. Create Boot media (WinPE) and copy Imagew into it.
2. Boot the PC for the WinPE USB Drive
3. Run imagew from with in the USB Drive.
4. Back Up the main PC HD to the same USB drive.
Then I get the error.
terabyteunlimited says "The C: drive is being used by something loaded on the boot media."
Which doesn't really helps...
Since I'm booting from the USB stick, what can be using the C:drive?
How to troubleshoot this?
Regards
