I got the same problem but I found the solution! If you get the error you have to: - Do the administrative installation, for example install to C:\PRODUCT - Extract the entire content of the SP in C:\SP - Modify the file ohotfix.ini: - Find the string "IsNormalUpdate=1" - Replace it with "IsNormalUpdate=0" (If you read all the stuff in the file you'll know...) - Launch ohotfix.exe and you'll be asked to select the MSI to update. - Wait... - Enjoy (I haven't tested this procedure with all the applications, but with OneNote it worked)