I tried a failed dual boot configuration on a laptop and now I can't boot into windows. I get a message that no bootable device was found. If I go into the BIOS, it does detect the hard drive.
As well, I took it out of the laptop and plugged it externally to a computer. In disk manager I can see everything on it, but none of the partitions in it (unnamed, recovery and windows) are set as "active" or "boot".
If I try to set the main one with windows as active, the selection is greyed out.
Similarly, if I use command prompt to use diskpart, it detects the disk, lists the partitions, but won't let me set the windows one as active. I get the message "the selected disk is not a fixed MBR disk. The ACTIVE command can only be used on fixed MBR disks."