thanks a lot for your email. I had a look but no big files .sys and none .old.
Only Hyberfil.sys is 800Mb and Pagefile.sys is 700Mb
They are probably inside the windows directory.
I imagine other people have this problem as you can buy PC with small SSD. I was hoping someone must have worked out that you can shift 80% of the drivers, install files and overlays into a pendrive and free the SSD.
I am not trying to install at the moment. I will look into that next.
Thanks.
Michael