I know it can be done by backing up the partition with Windows system.
I thought it could be done by editing parameters of the user account or by changing some system parameters connected with the user account.
Hi,
I'm using Sony Vaio laptop with Windows 8.1.
Recently something happened and the screen became black. I tried to recover the original wallpaper but couldn't do it. At the same time the keyboard stopped working.
I discovered that this is connected to the user account. As I had to reinstall...