An error about MFReadWrite.dll being missing is displayed and rekorbox does not start up.

The “N” and "KN" versions of Windows do not include Windows Media Player and related technologies, each of which is multimedia software that rekordbox 3.0 needs to run with.

Please download "Media Feature Pack" from the Microsoft website applicable to your Windows version from below and install it.

Media Feature Pack for Windows 7 N with Service Pack 1 and Windows 7 KN with Service Pack 1 (KB968211)

Media Feature Pack for N and KN versions of Windows 8

Media Feature Pack for N and KN versions of Windows 8.1