rhahgleuhargh I have at least 120GB available on the drive when I am integrating and yes those 2 updates are in prerequisites.
64bit Win7 works good, though it seems WTK hangs when i close it now as well.
Not sure why, maybe i need to reinstall windows or something.
32Bit Windows 7 seems to hang and crash during integration whenever it reaches KB3125574.
Tried on 1.5.4.10 , 1.5.4.8 and 1.5.4.4 with no change.
Also tried re downloading the update a few times.
Is anyone else having this problem or know how to fix it?