It might be my own fault, not being a big expert, but I've been using Win Toolkit before and this never happened before: I tried to make a fresh USB installer with McRip's updates integrated. (extracted dvd image and Win Toolkit on D: partition) Running and creating Win7 Ultimate x64. After completing I realised I forgot to add a driver, and ran it again (never did that before, and maybe i did something wrong there) Used the resulting USB stick to clean-install another PC, but noticed after doing so no updates or settings were added. Ran Win Toolkit all over again, same result. Removed Win Toolkit and dvd image files, started clean all over, same result. Now I get pop ups that my current C drive is getting full. Found a folder on my C drive named Wintoolkit with a 'mount' folder in it, which is getting larger and larger... (now about 11GB) Also muy current Windows is downloading updates while it was already up to date. Also some programs lost registration and say trial period ended and won't work anymore. I can rename the Wintoolkit folder and the 'mount' folder, but can't delete it (also tried changing ownership, unlock etc. etc) I am aware there is a setting somewhere were you can select to update your running Windows system, but I am sure I haven't touched that. In short, I now have a small disaster, I'll now have to completely reinstall my working PC which was running perfectly before. What may I have done wrong, and shouldn't there at least have been a warning that Win Toolkit was going to alter my running Windows installation? (anyway, still thanks for a great tool)