I'm able to download by clicking Action > Download Windows Support Software. But, it always shows the below error message on installing.
How do I fix this issue?
In macOS Terminal, can you run the following two commands post their output. If Action -> Download works, but BCA gives you this error message, it may be an unstable network connection.
Here are examples of each command and the corresponding output.
ping -c3 swcdn.apple.com
PING swcdn.g.aaplimg.com (17.253.97.201): 56 data bytes
64 bytes from 17.253.97.201: icmp_seq=0 ttl=60 time=10.885 ms
64 bytes from 17.253.97.201: icmp_seq=1 ttl=60 time=10.880 ms
64 bytes from 17.253.97.201: icmp_seq=2 ttl=60 time=10.100 ms
--- swcdn.g.aaplimg.com ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
dig swcdn.apple.com
; <<>> DiG 9.10.6 <<>> swcdn.apple.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51366
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;swcdn.apple.com. IN A
;; ANSWER SECTION:
swcdn.apple.com. 19215 IN CNAME swcdn.apple.com.akadns.net.
swcdn.apple.com.akadns.net. 247 IN CNAME swcdn.g.aaplimg.com.
swcdn.g.aaplimg.com. 15 IN A 17.253.97.202
swcdn.g.aaplimg.com. 15 IN A 17.253.97.206
;; Query time: 7 msec
;; SERVER: 192.168.1.1#53(192.168.1.1)
;; WHEN: Thu Oct 07 23:24:27 EDT 2021
;; MSG SIZE rcvd: 146
Is your Internet connection intermittent? Can your Mac connect to Internet using ethernet? If yes, can you try a wired connection?
From macOS Terminal, can you post the output of
diskutil list
APFS corruption can also cause such issues.
What is the year/model of your Mac (do not post the serial number)?
What is the current macOS version?
I have tried with the same Macbook (All the same only OS difference, this Mac install Catalina), it works as below.
But on the Big Sur, it always failed.
So I have another question: Do you know how to install Windows without using BootCamp?
Can I use the command line to install?
I have a mistake in saying Catalina works fine.
Bootcamp automatically selects the iso file, and then I install Windows 10 on Catalina works fine but won't work for Windows 11 (my mistake here). I think Bootcamp doesn't support installing Windows 11 yet.
Search on Google. I found a way to install Windows 11 by replacing the install.wim file in the Windows 10 iso by install.wim file of Windows 11. I hope this helps someone else with the same issue as me.
Thank you again for your helping, Loner.
Not many users can replace the install.wim from W10 version on a W10 ISO. If your installation is corrupted, you will have to remove Windows. I do not recommend such an installation method on a Mac that you consider critical. It is fine if you are willing to experiment.
Here is the output of sudo fsck_apfs -n -l /dev/rdisk1
Unfortunately, my Mac has thunderbolt ports only.
I can download it by clicking "Action > Download Windows Support Software", so I don't think it's an internet connection issue. I will try with another internet connection.
Here is my Mac info:
MacBook Pro (16-inch, 2019)
macOS Big Sur v11.6
Here is the output:
This looks clean. Run a SMC and NVRAM Reset and retry Bootcamp Assistant.
Thank you so much for your helping.
I will try and post the result here.
I have tried to reset SMC and NVRAM, but the result is the same. 🥲
Here is the output. I see there is no problem.
ping -c3 swcdn.apple.com
dig swcdn.apple.com
[Bootcamp Assistant] Can’t install the software because it is not currently available from the Software Update server.