Mac Pro boot is slow after formating Windows

[hms84]

Hello,
When I was in university I had to use Windows for my graduating project
I used to use SolidWorks and Medical application called Mimics (NOT ON MAC)
My Mac Pro NOW is really slow in booting, after I formated Windows
I used to have both Window & Mac in the same HD two partitions...
After I finished my project I formated Windows using Boot Camp,
BUT it became slow when Booting,

Any suggestions
Thanx

 

[FiveEcco]

You need to go to your System Preferences and then to "startvolume" (this is how it calls in german). Here you need to choose your OSX Volume and then. After that hit Reboot. Now the problem should be solved.

(Hope my english is not to bad)