iCloud for Windows not fully initialized.

I just fix the problem just to uncheck this "Internet Protocol Version 6 (TCP/IPv6)" on "Windows 11"

UPDATE:

Here is a fix for the problem. I have tried it, and it works. (https://answers.microsoft.com/en-us/windows/forum/all/why-am-i-getting-blank-window-with-red-x-when/c12ad5cf-b9f0-4e8b-a695-2df1945b92fe)

Be very careful in implementing this. If practicable, back up your C: drive before proceeding. If you are unsure how to proceed, please don't!

--------------------------------------------------------------------------------------------------------

Jason McCullough [MSFT]

I spent a few hours trying to reverse engineer

what the issue is here with process monitor and eventually resolved it. The

client certificate that iCloud uses to talk to the server appears to be getting

broken in some way.

How I fixed it:

* certmgr.mmc, file->add/remove snap-in,

certificates, my user account. There should be a certificate in

Personal\Certificates with a Issued By of Apple iPhone Device CA. Delete it.

WPG NOTE: This above step doesn't work with Windows 10 Home, which doesn't use snap-ins. Instead, do this:

1. 1. Type {WINDOWS KEY}-R
   2. Type: certmgr.msc and ENTER. This should open the Certificates Manager.
   3. 
   4. Open \Personal\Certificates
   5. Expand the right-hand panel to display the menu item, "Friendly Name."
   6. 
   7. Click on "Friendly Name" a time or two, until the "Apple Phone Device CA" file/s appear at the top.

8. Delete those files (only)

Now resume McCullough's instructions...

* In file explorer, go to

%APPDATA%\Microsoft\Crypto\RSA. There should be a folder with a name like S-1-5-21...or the like. Go in there.

* Backup this directory before messing with it (eg. Copy to Desktop - WPG).

* Open each file with Notepad, starting with the oldest one. You're looking for one that has the string APNSDaemon in it. Delete that one.

* Restart the computer and iCloud sign-in should work now.

I also installed this app, but I got the same issue.

I tried to change the Wifi network from my company to my iPhone tethering, therefore, my PC smartly installed the iCloud app.

I hope this helps you.

UPDATE:

Troubleshooting continuing... with help of Apple tech. Andrew, created a new (local) user on PC. iCloud installation and login went through without any problem on that account. So in my case, the issue is caused by something installed on my account, but we were unable to work out exactly what. A load of diagnostic data has been uploaded to Apple's engineers, who may be able to throw some more light on the problem (at least in my case). Will keep you updated.

The very same kind of troubleshooting and conclusion was made with me when I've contacted Apple. So I confirm that, if you create a brand new user profile in your Windows 10 or 11, than iCloud 14.x will not give you any issue and so you'll be prompted - as expected - to satisfy the MFA multi factor authentication and than Login successfully - This aspect led me to the conclusion that the issue we are all facing and reporting here on this thread is most probably caused by something going wrong during the "iCloud local app profile migration from the legacy version 7.x to the new current iCloud local Ms App 14.x". I am 100% sure about this root cause because, as WPeterG and myself experienced, when you create a new Windows profile and you install from zero iCloud by the Ms Store, than you will succeed to authenticate and use it fully. On the contrary, in my opinion, if you were using (in W10 or W11) iCloud 7.x happily and than migrate to iCloud 14.x than you'll most probably face this kind of challenge. I hope these notes will help you all users and also Apple Support to investigate deeper, reproduce the issue on their side as well and finally get it solved in collaboration with Ms Store hub. Thank you!

Jun 16, 2023 5:07 AM in response to RB0000

• RB0000 wrote:

• After working with Apple Support for several days, we have found this workaround that works for me:

Uninstall iCloud for Windows version 14

• Download iCloud for Windows version 13 (Version 13.4.101.0

• Install iCloud for Windows version 13

Apple Support is continuing to look for a full solution to the issue, but this works for me. Many thanks to Jatinder for working through it over the past weeks.

[Link Edited by Moderator]


Fascinating that Apple Support should have recommended downloading iCloud v.13. Did he mention a site from which users can obtain that version? (For those whom McCullough's fix doesn't work.) Or did our Moderator remove the link?

WARNING: Be very careful trying to find older versions of "iCloud for Windows" v.7.x on the web. The Filehippo files, for example, install PUPs - Potentially Unwanted Programs.

FWIW: On my system, Malwarebytes Premium didn't find any problems with this one (version 7.21.0.23): https://en.softonic.com/download/icloud/windows/post-download/v/7.21.0.23?msclkid=4aa4d86234001073efe1bceb7dc58f10 Be sure to uninstall v.14 items (the MS Store version) first if you want to try it. But read delavega79's post (Jun 13, 2023 8:54 PM) first!!

[This is a Direct Download Link]

I can confirm that on a machine behind a corporate firewall, iCloud was giving me the same "iCloud for Windows not fully initialized." Error. After opening port 5223 for TCP/UDP traffic on the firewall, the issue went away and I got the MFA prompt on the screen and on my iPhone/iPad in order to proceed. All is now working. Thanks DSI_Groupe_Louis for the lead.

I did this and it absolutely solved the issues. I searched and didn't have the suspect APNSDaemon string in my two S-1-5-21 files. No problem. Reboot, logged right into iCloud. I did however, have six of those Apple iPhone Device CA certificates. No idea where or how those populated. Issue resolved though. And at its' core issue, no less^^

Exactly the very same issue, I had it on Windows 10, I've upgraded also to Windows 11, always the very same issue. In fact just after I've entered my credential the login does not move forward to the expected step of the MFA multi factor authentication where on your iPhone should pop up immediately a related notification which allow you to discover the one-time-code to be entered in the pc screen if only iCloud app would move forward as well, but it doesn't.. The MFA by itself is working perfectly on the same PC and environment because in any other scenario where is required, it works smoothly, just like to sing in into this support forum -- I'd really love that Apple could guide us to fix it without expecting us to completely format and re-install our Windows OS. Thank you!

Same things done with me and never found the final guilty actor let’s say. Neither Vpn nor Windows firewall or Java software client etc etc..

I want to tell you more about my own findings and possible work-around. I was initially suspecting that something was preventing the MFA mechanism to work fine because the issue shows up exactly when I am expecting to be offered a notification on my iPhone - notification which doesn’t pop up - about the MFA numeric code which would be needed later on Pc side..to complete the authentication phase let’s say. So, what I tested on my own was to prove to myself that this mechanism MFA on my Windows pc was still working fine and I confirm you it does: If I try to access via pc browser to my iCloud contents I am surely asked to satisfy the MFA step as well, and in fact here on this alternative scenario it works perfectly so the root cause is not on my iPhone settings or into any Pc third party software running. If it was here the root cause, than I won’t succeed to authenticate to iCloud via web browser while in fact I do succeed and I have proved to Apple this evidence. Later on I moved forward to another deeper and Apple-unsupported troubleshooting attempt just to have more elements on my personal experience. I have found the client installation setup file of the software iCloud for Windows version 7.xx - I’ve than of course, first of all, uninstalled the iCloud windows app ver 14.x (you’ll have always two components to uninstall: the main iCloud client and the outlook component) Now, uninstall completed of the 14.x.. So let’s move on with my personal initiative of problem solving: I moved on by attempt of installing the iCloud 7.x and.. guess what… it works as a charm the MFA here!! Yes yes.. it succeed it so you’ll finally have iCloud working again on your pc.. and now you’ll be able to upgrade again to iCloud 14.x installing it by the Microsoft Store and now the MFA stage will work smoothly too as everything else too. Pro and Cons: 1st. please backup all your iCloud data manually BEFORE to do what I described because you never know how downgrading and re-upgrading will behave — 2nd. the old client of iCloud 7.x setup is not made available anymore by Apple on the web.. so.. good luck to find it maybe on some old images of your Windows past years experience.. when the 14.x version was not existent or mandatory to be used. In fact to me the 7.x version developed by Apple was perfect and all the troubles to me started by the introduction of 14.x but that’s my own personal opinion. — 3rd. the very same issue will come up again on using 14.x client exactly after any future Pc BIOS update that you will eventually be offered by your pc manufacturer, why, because after each pc Bios successful update than iCloud 14.x will ask us again to re-do the authentication steps.. and here will restart again the nightmare iCloud 14.x user experience. My conclusion: Bios updates vs iCloud 14.x MFA steps during login into iCloud client stage is the root cause of our issue but no idea on my side on how to get it solved by Apple or Microsoft engineers. Hope with all my heart that they will very soon as now I’m not using iCloud at all on my pc because of the above things. Thank you for reading me till the end.

In the beginning I tried to do this peocedure but didn't work. So then I tried to completely delete this folders:

1. 1. %APPDATA%\Microsoft\Crypto\RSA
   2. %APPDATA%\Microsoft\SystemCertificates

And now iCloud let me do the login without problems.

In the beginning I tried to do this peocedure but didn't work. So then I tried to completely delete this folders:

1. %APPDATA%\Microsoft\Crypto\RSA

2. %APPDATA%\Microsoft\SystemCertificates

1. Deleting all that security info was not a good idea. Did you make backups? Are you able to restore them?
2. Others are reporting that iCloud from MS Store may have been fixed. This could be why it now works for you.

I had this problem and here are the steps I took to solve it. iCloud worked fine on my Windows machine until it didn't, so here's what I did:

1. Uninstalled and re-installed iCloud like 10 times
2. Updated Windows Media Player
3. Read every board and article I could about the issue
4. Installed an older version of iCloud
5. Started creating a new local user - that seemed like a situation I didn't want
6. Next-level command prompts like fiddling with the Microsoft Store and running diagnostics and stuff
7. Watched YouTube videos (which had me repair, reset, uninstall, reinstall - again)
8. Called Apple Support. They asked me one question ("Is your computer 64-bit or 32-bit?") and the call disconnected. You bet I gave them a "strongly disagree" on their survey!
9. Tried iCloud on my other Windows computer where it used to also work just fine - same issue (not initializing, not logging in)
10. After several hours over a few days, I did one more round of searching online and found one last thing I hadn't tried:

I had to update my version of iTunes.

Everything works great.