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Hi folks. I'm running my 2015 iMac off of a USB SSD and want to use Boot Camp. When I start the Boot Camp wizard I get an error that an External storage device is attached. I'm aware Boot Camp doesn't natively allow you to use an external USB drive for Boot Camp but I'm looking for help in doing so because I'm sure it is possible somehow. Thanks.
iMac 21.5″, macOS 10.15
LonerT has some good advice...
I am in a similar boat and found the following during my research to be helpful as well:
All the best!
LonerT has some good advice...
I am in a similar boat and found the following during my research to be helpful as well:
All the best!
ridergroov wrote:
I was more looking to partition out the USB SSD I am using for the Mac side and split the rest for Windows 10 use.
Please clarify.
Do you want to
Wow, thank you for your replies. I think I ran across a few of these but some were a few years old. With technology, I like to find something within a year due to how much it changes. Thanks so much for sharing all this with me. Very awesome. Thanks!
Take a look at WinToUSB, but be aware that this is unsupported and can cause driver issues.
Hey thanks for the reply. I was more looking to partition out the USB SSD I am using for the Mac side and split the rest for Windows 10 use. Thanks again.
Windows 10 does not run on an external drive.
The second option, both.
Is there an issue with your internal disk(s)?
Well, issue is that it's a hard drive and a lot slower than my external SSD which is why I'm running off an external drive at all.
You will run into fewer issues, if you replace the internal HDD with a compatible SSD.
Running iMac off USB SSD - Need help with Boot Camp
