Yellow exclamation point trying to create a boot disk with Ghost Boot Wizard.
You are using the Ghost Boot Wizard to make a WinPE boot package. The process gets almost to the end then you get a message window with no verbiage but there is a yellow triangle with an exclamation mark like the one in this image:
1. Security Software: First try disabling any security software. Sophos antivirus software has been known to cause this issue.
2. Group Policy Objects (GPO).
3. It is also possible that the WinPE files have become damaged.
You will likely need to reinstall Ghost Solution Suite 2.5:
Reinstall Ghost and run LiveUpdate until you have the latest version of Ghost.
Group Policy Objects (GPO) have also been known to cause this issue. If uninstalling/reinstalling the Ghost software does not resolve the problem, remove the Ghost Server computer from the domain, uninstall/reinstall Ghost, and then test the Ghost Boot Wizard again. If the problem is resolved after you remove the computer from your domain, you should investigate any GPOs that might be preventing the modification of the Windows Image file (WIM).
If the problem persists after disabling security software, verifying that a GPO is not causing your problem, and uninstalling/reinstalling Ghost Solution Suite, then run the attached diagnostic binary of the Ghost Boot Wizard:
Copy Ghost Boot Wizard.exe to the desktop of any computer that is affected by this problem.
Run the Boot Wizard as you normally would and wait for the error to occur.
When the error occurs, gather the log file called gbwlog.txt (located on the desktop) and open a support ticket with Symantec Technical Support.