I know this question has been asked before but I've tried all the usual fixes and nothing works. Basically the hard drive had two partitions with Vista and Windows 7. I've deleted the Vista partition to make more room and expanded the Windows 7 partition to fill the drive (using GParted). I've tried: • Running Startup Repair - it doesn't find any problems. • Setting partition to Active - worked. • bootsect /nt60 c: - worked. • BootRec /FixMbr - worked.
Home → Blog → Windows 10 Bootrec – the requested system device cannot be found. Windows 10 Bootrec – the requested system device cannot be found. “The requested system device cannot be found.” At least for me, the general go-to solution of using bootrec with /fixmbr, /fixboot, /scanos, /rebuildbcd would not work. In this guide, you’ll learn the steps to repair the Master Boot Record on your PC. However, keep in mind that you can use the same instructions on Windows 8.1. How to repair the Master Boot Record. To fix problems with the Master Boot Record on a device running Windows 10, use these steps: Create a Windows 10 USB bootable media.