Finally, this post was edited by ibud at 2014-10-22:14. It is estimated that the remaining patches have not been cleaned up, and there are winsxs and so on. 2. The compression ratio of 2.gho is not as good as wim. I made an unrefined system, only installed basic software such as rar and input method, in gho format, xp is 900 MB WIN7.