This article applies to: AOMEI Partition Assistant

Introduction:

Some operations require to be performed under PreOS Mode. But your PC might keep reboot into PreOS because of some special environment of you PC.

Solution:

The reason why your PC go into AOMEI-PreOS is because of a file named “ampa.exe” (it’s created by Partition assistant)which in this directory C:\Windows. In this case, you could create a bootable media by 3th-party software. Then boot into WinPE to delete the “ampa.exe” file from C:\Windows. After that, you could boot into windows normally. Then re-install Partition Assistant and retry the operations. For some operations will ask for going to PreOS, you could directly make a bootable media to complete it if you still fear in the same situation.

If there is still any problem, please feel free to contact our AOMEI support team.