I have Hard Disk Manager 14 and Windows 7. I used to use Boot Manager to keep a Windows XP partition available, but deleted that some time ago. So although Boot Manager appears to have a partition on my disk drive and is the only active partition, it does not activate during boot to give me an OS choice. I am now looking to install Windows 10 into the partition previously used by XP. However when I select "Boot Manager" from the "Tools" tab of the HDM's start screen, I get a error window: "Hard Disk Manager", "Operation failed", "Failed to start selected task \..\bmw\bmw.exe". It is possible that this stopped working when I got new hardware which did not support Windows XP and transferred my system from my old ATA drive to a new SATA drive. I did a complete reinstall then including installing HDM from the distribution files.
No solution found. I abandoned attempts to upgrade to Windows 10. It is possible that I could have backed up; then deleted all disk partitions, reinstalled Windows 7; upgraded to 10; reinstalled all applications and restored all data. Windows 10 did not seem to give enough benefits to justify time spent doing this, especially as I use Media Center regularly and would have had to install an alternative.
Now solved! Step 1: Backup whole drive and prepare Hard Disk Manger recovery boot CDs. Step 2: Delete the small boot partition. After which, as expected system will not boot. Step 3: Run all available Boot repair options from HDM boot CDs. Still won't boot. May be a necessary prerequisite to make next step work or may be unnecessary. I have no way of knowing. Step 4: Run Repair option from Windows 7 installation DVD. It then booted. Step 5: Backup whole drive again. Step 6: Run Windows 10 upgrade. This eventually worked, though it took several hours during which it appeared to have stalled several times.. Note: I now use SichboPVR to replace Media Centre.