On a Windows 2003 server I needed to re-size (reduce) the data partition (D:) in order to increase the system partition (C:). I used AOMEI Partition Assistant Lite Edition 5.1, which is free. The program said it needed to do this in a Pre-OS environment, so I clicked OK to re-boot.
The server never came back to life, but stalled with a message which reads
the operation abort – information code 12
disk environment has changed – please reboot
Pressing any key had no effect, so I was forced to power off, but then the same thing happens.
I can’t find a way to stop the AOMEI Pre-OS from starting.
I have emailed their support section twice in 24 hours, but have still had no reply, and I am getting desperate (and so are the users!).
I have managed to get into the recovery console from the Server 2003 CD, but I still don’t know how to prevent the automatic startup in this Pre-OS mode.
I’d be very grateful for any ideas.
This is not a common error of AOMEI Partition Assistant, the computer reboot to Pre-OS mode is decided by a file called “ampa.exe”, it is located in “C:/Windows”, so to solve this problem, you could create a winPE system and then boot from this system to locate this file and delete it or connect your system disk to another machine and then delete this file. And if you could enter the Advanced setting, when the computer reboot, you maybe warned that to press particular key to enter…at this time press F8 to enter advanced setting and then select back to the ” “back to Last known healthy computer configuration”. After the process completed you could come back to your last known healthy computer configuration.
Hope it could help.