Q: Your bootable USB drive could not be created

I tried to installed windows 8.1 pro iso file. 1st copied iso to 16 usb drive(formatted one). then i open boot camp assistant. I followed on screen and in the moment its shown error message and my disk having more space.

Your bootable USB drive could not be created - An error occurred while formatting the disk.

What steps i ve to follow to sorted out this issues

Regards,

Arun

MacBook Pro, OS X Yosemite (10.10)

Posted on Mar 11, 2015 5:03 AM

I have this question too

Q: Your bootable USB drive could not be created

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by Loner T,

Loner T Mar 11, 2015 7:38 AM in response to arunachalamfromtanjore
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Safari

Mar 11, 2015 7:38 AM in response to arunachalamfromtanjore

BC Assistant will erase and format the USB. It should be a USB2 device. BCA also copies the ISO from your Mac to the USB, so there is no need to copy it, since it will be overwritten.
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by arunachalamfromtanjore,

arunachalamfromtanjore Mar 11, 2015 8:34 AM in response to Loner T
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Mar 11, 2015 8:34 AM in response to Loner T

It means i formatted my usb2 16 gb & now there is no files in my usb and iso file in my Mac "download" folder. can i continue this way in BCA

Regards
Arun
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by Loner T,

Loner T Mar 11, 2015 9:01 AM in response to arunachalamfromtanjore
Level 7 (24,098 points)

Safari

Mar 11, 2015 9:01 AM in response to arunachalamfromtanjore

Run BCA and pick appropriate options.
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by arunachalamfromtanjore,

arunachalamfromtanjore Mar 11, 2015 11:19 AM in response to Loner T
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Mar 11, 2015 11:19 AM in response to Loner T

Its formatting & saved successful. During restarting " no bootable device-- insert boot disk and press any key"

how how can I sole this& what step I be to take now
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by Loner T,

Loner T Mar 11, 2015 11:46 AM in response to arunachalamfromtanjore
Level 7 (24,098 points)

Safari

Mar 11, 2015 11:46 AM in response to arunachalamfromtanjore

Did you modify Bootcamp info.plist? Are using a USB2 flash disk? What year/model is your Mac?
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by arunachalamfromtanjore,

arunachalamfromtanjore Mar 11, 2015 11:52 AM in response to Loner T
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Mar 11, 2015 11:52 AM in response to Loner T

S am using usb2 Mac book pro(Mid2012)
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by arunachalamfromtanjore,

arunachalamfromtanjore Mar 11, 2015 1:06 PM in response to arunachalamfromtanjore
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Mar 11, 2015 1:06 PM in response to arunachalamfromtanjore

I Opened Mac by pressing of option key then selected Macintosh drive& further how I can install windows 8.1
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by Loner T,

Loner T Mar 11, 2015 3:06 PM in response to arunachalamfromtanjore
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Safari

Mar 11, 2015 3:06 PM in response to arunachalamfromtanjore

Please start at How to install Windows using Boot Camp - Apple Support.
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by arunachalamfromtanjore,

arunachalamfromtanjore Mar 11, 2015 7:01 PM in response to Loner T
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Mar 11, 2015 7:01 PM in response to Loner T

how i ve to install windows from usb2 drive. there are some confusions happened. my disk utility boot camp partition that is 50gb. next how i install windows? if i see start up disk its shown only macintosh. during restarting if i press option key there windows shown. if i click windows disk

" no bootable device-- insert boot disk and press any key"
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by Loner T,

Loner T Mar 11, 2015 7:21 PM in response to arunachalamfromtanjore
Level 7 (24,098 points)

Safari

Mar 11, 2015 7:21 PM in response to arunachalamfromtanjore

1. Do not use Disk Utility for any Bootcamp related work. Delete the partition created via Disk Utility. Set up a Windows partition on your Mac - Apple Support using Bootcamp Assistant. If the partition was created by BCA then it can be reused.
2. If the USB2 has been created successfully, use the last option in BCA. You do not need to use 'Create USB..' and 'Download software...' again.
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by arunachalamfromtanjore,

arunachalamfromtanjore Mar 11, 2015 8:26 PM in response to Loner T
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Mar 11, 2015 8:26 PM in response to Loner T

If i uncheck those two options, and selected only "Remove windows or later version", then its asking me to restore. Can I?
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by arunachalamfromtanjore,

arunachalamfromtanjore Mar 11, 2015 8:56 PM in response to Loner T
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Mar 11, 2015 8:56 PM in response to Loner T

Now I restored and started the process from the beginning.
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by arunachalamfromtanjore,

arunachalamfromtanjore Mar 11, 2015 10:48 PM in response to arunachalamfromtanjore
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Mar 11, 2015 10:48 PM in response to arunachalamfromtanjore

Again end up with same error after partitioning and clicking install. "No bootable device.. insert boot disk and press any key". From there, I just restarted, pressed alt key and choose Machintosh to get back.

What needs to be done now to get this solved.
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by Loner T,

Loner T Mar 12, 2015 5:28 AM in response to arunachalamfromtanjore
Level 7 (24,098 points)

Safari

Mar 12, 2015 5:28 AM in response to arunachalamfromtanjore

Can you post a screen shot similar to the following?

Can you also plug in the USB and post a screen shot from System Report -> USB? It should look similar to
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