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Are you using Developer Mode or made changes in it?
Nope
Have you disabled/removed all your mods and addons?
Yep
Brief description of the issue:
Today I hade the Win 11 H2 update and after that when starting FS I got the mandatory update.
But then FS get stuck at half way loading.
On the New Activities screen.
After that the FS window is not responsive.
I have rebooted the computer and I have tried starting FS several times.
Anyone else seeing this issue?
I have filed a bug as well.
Before todays updates I’ve had close to zero issues with FS.
Provide Screenshot(s)/video(s) of the issue encountered:
Detailed steps to reproduce the issue encountered:
Start MSFS 2020
PC specs and/or peripheral set up if relevant:
i7-8700
2070 Super
32 GB ram
Build Version # when you first started experiencing this issue:
1.27.21.0
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Do you have the same issue if you follow the OP’s steps to reproduce it?
Provide extra information to complete the original description of the issue:
If relevant, provide additional screenshots/video:
Mine all of a sudden is stuck on “Checking for Updates” ( Steam edition )
I had the same issue, try doing a windows update (win key + i) and there is a net framework update, mine worked after that
I believe now after seeing your post that is the issue that is causing FS to not load. It updated and since that update FS has not loaded
I did have a framework update waiting but it didn’t fix the problem.
So I followed All versions - Loading issues - Checklist
https://flightsimulator.zendesk.com/hc/en-us/articles/4406039624338-All-versions-Loading-issues-Checklist
And that seem to have resolved the issue meaning I was now able to get to the start page.
However, I now got the message that I have a low bandwidth hence sim set me to offline mode 
But I guess thatäs another story.
Thanks everyone for your feedback and suggestions 
Any one that can help , PLEASE help. I have followed all the suggestions from the Flight simulator support. I did everything that it suggested. It did not work. Finally I broke down even thought I did not want to and installed windows 11. The install went well but MSFS had the same exact issue ! I then uninstalled and reinstalled the Sim and the exact same thing has happened. What is going on ? Does anyone have any other suggestions. When it worked it was a great program , but boy am disappointed now. I bought this computer specifically for the sim ! Please someone help Microsoft referred me to help files and has not got back to me. Deeply disappointed.