Dell 3543 i7-5500 Is there anyone managed to install Win10 ? Just to stop trying.... :(

To add more details:

I always delete the C:\WINDOWS~BT 

I always delete the C:\WINDOWS\SoftwareDistribution\Download\

I tried uninstalling ALL the software AND drivers except Intel Display and touchpad.

I tried install also from USB.

I am trying from Monday , i am convinced that this won't do at all.

My next try is to install clean Win8.1 Greek from Microsoft creation tool (no Dell , no Apps) and then upgrade to 10.

Update: Clean Installed Win8.1 ENG-US (DVD) , it activated normally (my original was GR version).

So i have a clean ENG 8.1 Home - no drivers at all , no Dell add-ons , only 2 partitions (OS and Reserved 350MB.

Tried installing now Win10 ENG-US Home (DVD) .... and still that error !!!!!

Something Happened. Windows installation failed!

...and i'm still wondering ...Dell says 3543 is compatible with Win10....

Am i un-Laki ?

Well i did was unlucky.

My problem was a rare situation where i was using 'system' as computer name and 'user' as username.

According to googling i found that 'SYSTEM' is not a valid computer name , and someone else also had windows update problems due to that.

So i post my solution in case it helps someone.

Do you mean that if I use "system" as a username windows 10 will not been installed?

it's a wonder information HH

thank you anyway

Hope you resolved the problem

Hello.

'system' as a computername .

Anyway one of the both above was causing the installation to fail.