I just upgraded my windows from home edition to professional. Windows installer comes up every tme I turn my computer on as asks for the path for ECDC6.msi. It is not on the computer. I cannot delete Easy CD & DVD Creator 6 because it says there is an installation running that I must complete. I also cannot load the new Microsoft Office version I purchased because it says to wait until the installation is complete. I AM LOST. I cannot even turn windows off and have to switch off the electricity to stop the computer. I am not a computer wisard and need help.