I had windows 7 in bootcamp before and uppgraded from OS X lion to lion Moutain after that the screen turns black after starting windows
iMac, OS X Mountain Lion
http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf
create a Windows support software (drivers) CD or USB storage media
The Boot Camp Assistant can burn Boot Camp software (drivers) to a DVD or copy it to a USB storage device, such as a flash drive or hard drive. These are the only media you can use to install Boot Camp software.
https://support.apple.com/kb/HT4569
Installation Guide Instructions for all features and settings.
Boot Camp 4.0 FAQ Get answers to commonly asked Boot Camp questions.
Windows 7 FAQ Answers to commonly asked Windows 7 questions.
http://www.apple.com/support/bootcamp/
There is a note on 27" iMac on the support page above.
http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf
create a Windows support software (drivers) CD or USB storage media
The Boot Camp Assistant can burn Boot Camp software (drivers) to a DVD or copy it to a USB storage device, such as a flash drive or hard drive. These are the only media you can use to install Boot Camp software.
https://support.apple.com/kb/HT4569
Installation Guide Instructions for all features and settings.
Boot Camp 4.0 FAQ Get answers to commonly asked Boot Camp questions.
Windows 7 FAQ Answers to commonly asked Windows 7 questions.
http://www.apple.com/support/bootcamp/
There is a note on 27" iMac on the support page above.
I have a 27" and window7 64-bit and OS X lion Mountain. when installing windows 7 the screen gets black in the final round. What to do?
