QT installation problem

[adam2016]

Hey guys I'll start of by saying I'm new tp qt.I decided to try download qt,its something that has interested me for a long time but only now am I getting into it anyway

I downloaded qt for windows and after about 5-6 hours the download finished well just about finished it downloaded all the qt sdk and then at 99% it gave me an error so it didn't complete fully,I don't want to sit and wait for another 6 hours so I'm wondering is my installation still ok to use?

the qt creator will open but when I open it a dialog box with this message appears

Plugin initialization failed: The maintenance tool at "C:\Qt/MaintenanceTool.exe" is not an executable. Check your installation.

also it says in the console window below that my c and c++ compilers differ

** Note code seems to compile and run fine

thanks