I have MacBook OSX 10.10.4. I installed Win7 using Bootcamp, and it worked fine. Last week I was prompted to upgrade to Win10 and I did. Then I ran Bootcamp.msx, which setup the track pad, so Windows is working well, and I can see my Mac partition. Rebooting to Mac, I do not see the Bootcamp partition, I opened Disk Utility app and it shows the Mac Disk partition and another partition disk0S4, it should have been BOOT CAMP. I tried to run Boot Camp Assistant and the two prompts I get are, - Download Windows latest Support Software - Remove Windows 7 If I go to System Preferences -> Startup Disk, I see only the Mac disk I can reboot in either Windows or Mac by pressing the Option key at Startup, but I cannot see the Windows Bootcamp partition in Finder when in Mac. Any help would be appreciated.