Done testing on mine laptop and successfuly produce same error, but with different setup, on laptop i have Home Premium x64 with only C: and D: partition, i use all default settings, except i ticked on LDR/QFE in option before integrating process start. I also tryed to extract all MSU to CAB and integrate CABS instead MSU, but produce same error in integtation. Also i notice in integration process that when apear some hotfix name in W7T statusbar some of them are showing twice like for example Integrating update 23/313 (KB2541014) then show same Integrating update 23/313 (KB2541014 QFE) but this time when i look in cInst folder i found one and only update-bf.mum. Btw did anybody else can also test and confirm? For now i will stick with normal integration+LDR placeholders. Lego if you need something, I will gladly help.