Yosemite and Bootcamp

[Soccer5se]

I have Windows 7 installed on Bootcamp on my iMac and I want to upgrade to Yosemite. If I download and install Yosemite will that mess up my bootcamp?

Thanks

 

[macenied]

It's possible and depending on various factors, look at the discussions in the OS X Yosemite forum. I messed up BootCamp by installing Yosemite, others had no issues. Just be prepared for a fresh install of OS X and Windows.