Windows 10: Win10 Update to Win11 with ERRORS

HiI am trying to update Win10 to Win11 and I am running from one ERROR into the next ...What I have already tried:- installed all optional Updates for Win10 before the Update- removed all external devices HD, printer, mouse, etc. and stopped all Non-MS-Services before the update- fixed some known Update-Problems as per KB-entry with DISM.exe /Online /Cleanup-image /Restorehealth and sfc /scannow- I am still getting lots of errors in setupact.log, the first one being this:24-06-24 13:46:24, Error [0x0808ff] MIG &

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Win10: windows update stuck at never ending loop ?

When in win10:

• Update&security -> Windows update -> Finding update... .... .... ....

Planning to download the latest Win10.ISO (vers.1803) and manually update:
- Then wait that my ordered new SSD arrives and clone the old HDD to it.

 

updating Win10 to Win11.

If I update from my current Win10 to Win11 as offered, will this affect:

1. any of the program (APPS) that are currently installed?

2. and will it leave all my files unaltered as they are in WIN10?

 

Same VPN that works on Win10 won't work on Win11

Here is the exact text of the other error I sometimes see. This one seems to appear on my win11 machine only if I haven't connected to the VPN from my win10 machine recently.

"The network connection between your computer and the VPN server could not be established because the remote server is not responding. This could be because one of the network devices (e.g. firewalls, NAT, routers, etc) between your computer and the remote server is not configured to allow VPN connections. Please contact your Administrator or your service provider to determine which device may be causing the problem."

Just to rehash the steps I've taken to troubleshoot this particular error:

1. It doesn't appear to be the firewall on my win11 laptop, because I've tried connecting with it turned off, and haven't had any success.
   
2. It doesn't seem to be anything in between my home network and the remote VPN server, because I can connect from my win10 laptop on the same network.