Hi Lego, I am trying to integrate the following updates (given in the log file and one more update KB2976978. There are total 30(with the error, specified in the log), + 1 (succefully integrated). all the failed updates show the following dism error: 0xc0000135. Here is the log file: http://pastebin.com/CqHrV1HS I had downloaded the updates from WHDownloader (Windows8.1-Update3-x64 update list), for my windows 8.1 enterprise (non-eval) x64 iso with update (en_windows_8.1_enterprise_with_update_x64_dvd_6054382.iso) Wintoolkit version is 1.5.3.9 So how to fix this? Thanks btw, i can't upload a log file as attahcment. why? thanks in advance.