You can use the WinPE image to provision a device that does not have a Mirage client installed or to provision a device that does not have an operating system installed.
About this task
The image that you create with WinPE runs on memory, not on the hard disk.
On the WinPE image you can only perform provisioning procedures and generate sysreports.
Mirage supports provisioning into legacy systems and EFI systems. In some cases, such as when the disk is not Windows ready, or when there is insufficient space on the existing volumes, Mirage might re-partition the disks. Re-partitioning creates a single partition for the whole disk that is selected by Mirage. Re-partitioning only succeeds on EFI machines if they are configured to boot in legacy mode.
If you do not have the option to select legacy boot on the endpoint, you can implement a PreMirage script using diskpart to partition the disk.

If WinPE reboots during a provisioning procedure, the device reconnects and is identified as a new pending device. Previous provisioning orders on the device are not applied and you must restart the provisioning process.
When the image boots, two command prompt windows appear. One command prompt window is for troubleshooting. The other command prompt window runs Mirage in the WinPE environment.
WinPE stops running the shell and restarts after 72 hours of continuous use.
You can provision a device with Mirage by using a base layer with the following operating systems.
POSReady 2009
POSReady 7
Windows 7
Windows 8.1
Windows 10