Please follow the steps below.... 1. Confirm you have downloaded correct ISO file a. For the serial number starting with SH81R###### -BJCUBExxT(SH81R) for Windows Embedded -BJCUBExxT-LX(SH81R) for Ubuntu Linux b. For the serial number startting with SH61R###### -BJCUBExxT(SH61R) for Windows Embedded -BJCUBExxT-LX(SH61R) for Ubuntu Linux 2. Open and following instruction on CREATING RECOVERY FLASH DRIVE.PDF 3. Open and follow the Recovery instructions a. For Windows - Blackjack Cube Windows Recovery Instructions.pdf b. For Ubuntu Linux - Blackjack Cube-LX Recovery Instructions.pdf