I had been trying to instal windows 8 Pro to iMac 21.5 OSX10.8.5 but when i tried to partition the disk it prompts an error occurred while partitioning the disk. I tried to verify and repair the disk but it says ok. What should i do? thanks in advance
iMac, OS X Mountain Lion (10.8.5)
1. Try safe mode if your Mac doesn't finish starting up - Apple Support and boot back normally and test BC Assistant again.
2. Resolve startup issues and perform disk maintenance with Disk Utility and fsck - Apple Support and boot normally and test BCA again.
3. Try the following two steps and then try BCA.
Resetting the System Management Controller (SMC) on your Mac - Apple Support
How to Reset NVRAM on your Mac - Apple Support
4. If none of the above work then
a. Back up OSX using Time Machine - Mac Basics: Time Machine backs up your Mac - Apple Support.
b. Boot into Internet Recovery - OS X: About OS X Recovery - Apple Support.
c. Erase your internal drive and restore from the TM backup in Step 4a - OS X Yosemite: Recover your entire system.
Please be aware that TM does not backup Bootcamp partitions.
My device is starting up but when i reach the partition the message is an error occured when partitioning the disk.i could not finish from there
Please try the steps noted in that order.
Boot camp says partition is complete but my screen is now black what should i do?
What is the year/model of your Mac?
I am using imac the screen just displays no bootable device found but when i chek my usb windows is there.
What is the year/model of your Mac?
There are several reasons for a black screen/no bootable device. The answer to the above question will determine the resolution. If you modified Bootcamp info.plist to create the USB, the USB installer will not work.
Thanks Loner! I finally was able to instal windows to my device
Excellent. Please ensure you create backups for OS X and Windows to separate external disks.
Back up files you mean? thanks you've been a great help!
An error occurred while partitioning the disk
