You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

saaifu Author

Level 1

4 points

mac OS wont reboot after installing windows 7.

i have installed mac OS high sierra and right after using bootcamp i installed windows 7 ultimate 64 bit. then all was normal. but when i installed windows support software and try to reboot the system mac OS won’t show in the boot manu and only windows 7 shows in the boot after pressing oftion key.

when i press on windows 7 , go into windows booting mode shows blue screen and crash right after.

other start up combination key doesn’t work like cmd+R, shift, opt+cmd+R.

my previous mac OS was el capitan and windows 7 professional.

macbook early 2015

8gb ram

256 graphics card.

250 gb hard disk.

etc.

MacBook, macOS 10.13

Posted on Mar 26, 2019 8:00 PM

Top-ranking reply

BDAqua

Level 10

245,093 points

Posted on Mar 26, 2019 8:12 PM

Yikes... Gulp, not a lot you can do, you might need an OS installed on an external drive.

Have you done a PRAM reset, CMD+Option+p+r...

http://support.apple.com/kb/HT1379

In fact, do 3 in a row, takes a bit of time.

View in context

mac OS wont reboot after installing windows 7.

Similar questions