Hi,   I have a Dell Optiplex 790 desktop it originally had windows 7 on it, it now has windows 10, the thing is it suddenly is missing windows features, it will no poplutate after stating Please Wait. 

I tried just about everything to get it back, and was told a pc reset will bring it back but i don't want to do that at this time. so i found a possible solution on the web but the Download will not work i get a 404 errror website not found. anyone know where i can download this and see if it gets back the windows features, Thanks>>>

Download System Update Readiness Tool for Windows Vista 64-bit