Hi and thanks for all the help and sorry for the late reply... I found a solution yesterday that saved my disks. I used a program called "MiniTool Partition Wizard" which cleaned/corrected the errors that occurred. Windows own Chkdsk in CMD did not make them compatible again with LE, strange as it worked before. But read somewhere here in the forum that it can depend on which Win10 edition you have. Anyway, it works again, but will check the LibreELEC 12 solution that you posted here. Thanks again and take care everyone, you are worth your weight in gold you know. Best regards 2469 from Sweden