Hello so my Problem is quite a tricky one and i Need some explicit help from Experts to solve this.
To the german Microsoft Support this was a first Time case i dont know how it is in English Support but ist pretty specific.
So about a week ago i wanted to connect to Internet over Ethernet Connection, the day previous to it the Connection worked fine and nothing was changed in the night. Now i came back to the Computer in the morning and the Connection wasnt available.
So i started out by trying to ipconfing /renew and /release after it wasnt working i disabled it in device Manager and reactivated searched for Drivers but nothing helped, i removed the Network Card from the device Manager and reconnected it manually. Now it still didnt function so i was expecting the DHCP Server to have boinked so i connected my Laptop but the Connecting Progress went fine and i got Connection in no Time so i tried to connect the Connection over an USB Adapter to my Computer to no avail i updated the Connectors Drivers but nothing helped.
So next step was to do a System Recovery from the previous Date and i started it but about an hour later it told me it was not able to do a system recovery. It turned off and when it turned on it was skipping boot sequence and going to a Windows logo with a Spinning circle of dots but not advancing in anything or showing any Progress, when restarting the Computer the same Situation appeared. After trying for some time to get into boot menu it worked, but nothing seemed off, the Partition was still intact, boot sequence was fine and in General no Settings were altered so i decidied to give the Computer a clean cut and tried to install a completly new copy of Windows. After starting the Installation and it going to about 42% it stopped, the circle was still Spinning but no Progress was made, also no Errors and nothing. I let it sit for round about 5 hours before killing the power and going home. The next day i came back and connected the Computer to the Power and like a wonder it booted normally, it even had my old Installation but just with no files and the same License of Windows.
So what i am asking is why was Windows not available to make a Connection to the DHCP in the first place when the Ethernet Cable and the Server itself was fine. It could have been the Network Card but the Adapter also did not work ?
And secondly why did the Windows System Restore and New Setup bug out so much that my Files werent deletet but it just booted fine after a night of rest ?
PS.: for anyone interested in the mind bogeling answers from german Microsoft Tech Support i can translate them and put them under this post.