I have been wasting 3 week (until today) to figure out what wrong was with my image development. With the same Windows base i used since early this year, I kept updating it until I stuck whenever I launch DELL Image Assist to develop image.

Today, I found that the minimum requirement might not only rely on RAM and storage space. Also, the number of CPU core.

The best requirement for myselft is

  1. RAM - 8GB.
  2. Storage space - 60GB. Enough to have MS Office, SAP client, antivirus and other small software. Including Windows and MS Office updates too.
  3. CPU - 2 cores. 1 core is not enough. May cause hang to Virtualbox but not to host machine.