What is Partition Assistant Restart Mode?

Introduction

Generally speaking, when you click the "Proceed" button to start on Partition Assistant, the operation will be completed under Windows Mode. In this mode, there is no need to reboot the computer. As below:

However, some operations could not be completed under Windows Mode, such as "Shrink system partition", "Clone System Partition", "Migrate OS to SSD", or some applications that are running on the partition you want to resize. In these cases, the target partition could not be locked. Therefore, the operation will be completed under the Reboot Mode (including Windows PE Mode and PreOS mode).

Windows PE Mode

When you select the "Restart into Windows PE mode" option to perform operations, it will first create a WinPE bootable iso based on the system's recovery environment.

After the creation of WinPE is finished, the PC will reboot into the WinPE environment to execute the operation.

After operations are completed, it will reboot into Windows by default.

PreOS Mode

When you select the "Restart into PreOS mode" option to perform operations, there is no need to create ISO, so that it will be faster to enter into PreOS mode to perform operations. For system partitions, we suggest that you select WinPE mode to resize partitions.

The below interface is initialzing PreOS mode:

The below interface is the PreOS mode in Windows:

After operations are completed, it will reboot into Windows by default.

Notes:

• When the program reboots into the WinPE environment and detects system environment changes, it will quit the WinPE environment and then reboot into PreOS mode to continue operations.
• If Qiling Disk Master can't detect the system's recovery Environment due to some reasons, it will only reboot into PreOS mode.

Manually Enter into PreOS Mode

In order to make the process run under the boot mode, you should hold select "Disk Master Recovery Environment". Then it will into the PreOS mode.

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