Thanks for your care John. I'm not a professional but indeed a fan of nlite and slipstreaming, i use to integrate my win xp each 4~5 months with all of the updates and some addons. With my past experience, i never disabled SFC option and as i know the themes and styles are unsigned, i always use to enable "Uxtheme Patch" option in nlite and never get such an error before. This is the first time i've experienced this message. Is it a must have option (disabling SFC) when i enable "Uxtheme patch"!? if the answer is yes, why i get this error for the first time in these years? No, i used once. don't know, because i have not any option to know which file is missing or replaced. when i click on "more information" there is another window repeating the same message "insert your win xp..." Is there any way to underestand which file or files are missing? when i insert xpcd and click on retry, there is another error with the same message after about one min and after retrying again, there is no message and error. About the text mode drivers, i've read it in a site i don't remember about 2 years ago, after that i use to select all of the drivers. i'll give it a try. Always. in the last integration i saw an old update in my automatic updates window that was not seen before "KB898461", don't you guess there is a conflict with this update!? Thanks again for your care.