Boot Camp Assistant thinks my 64-bit Windows 10 ISO isn't one

Question

Level 1

8 points

Boot Camp Assistant thinks my 64-bit Windows 10 ISO isn't one

I just completely reset and updated my Early 2015 13" MacBook Air to macOS Catalina, and I wanted to install Windows 10.

I downloaded a fresh ISO of 64-bit Windows 10 using Microsoft's Media Creation Tool, and yes, I made sure it's 64-bit only and not "32-bit/64-bit" but Boot Camp Assistant thinks the ISO isn't what it needs.

I've searched around on the net and people say to redownload the ISO because it might possibly be corrupt. I've redownloaded the ISO three times now, and it still doesn't work.

The error message is as follows:

---

Need 64-bit WIndows 10 or later ISO file.

Boot Camp only supports 64-bit Windows 10 or later installation on this platform. Please use an ISO file for 64-bit Windows 10 or later installation.

---

Please help.

MacBook

Posted on Oct 10, 2019 5:12 AM

Reply

Answer 1

Best reply

Loner T

Level 9

59,477 points

Oct 13, 2019 6:01 AM in response to Aersene

Aersene wrote:

How would I download the full ISO without MCT?

In macOS -> Safari -> https://www.microsoft.com/en-us/software-download/windows10ISO.

Do not use a PC. On a PC, Microsoft detects the browser and uses the MCT. On macOS, it does not.

Reply

Answer 2

Aersene Author

Level 1

8 points

Oct 13, 2019 5:50 AM in response to Loner T

Hi Loner T, sorry for replying so late. I appreciate your help.

How would I download the full ISO without MCT?

Reply

Answer 3

Loner T

Level 9

59,477 points

Oct 10, 2019 5:46 AM in response to Aersene

What is the name and MD5sum of the ISO?
Did you download the ISO from the Microsoft Download page?

Reply

Answer 4

Aersene Author

Level 1

8 points

Oct 10, 2019 6:25 AM in response to Loner T

I downloaded the ISO using Microsoft's official Media Creation Tool for Windows 10. I'm not sure about the MD5 checksum. How would I check?

Reply

Answer 5

Aersene Author

Level 1

8 points

Oct 10, 2019 6:27 AM in response to Aersene

As far as I know, there is no other way to get a legitimate copy of a Windows 10 ISO file from Microsoft directly apart from using the Media Creation Tool. I may be wrong?

Reply