It could be a bad sector on the boot section of the drive. Spinrite is a useful tool for diagnosing that, and in some cases fixing it to the point where you can at least boot the drive and/or get the data off it.
--------- Brian On Wed, Nov 1, 2017 at 3:36 PM, Thane K. Sherrington < th...@computerconnectionltd.com> wrote: > No external drives. I can boot to a flash drive or DVD (I'm booting to > DVD to get into RE. > > T > > > > Are you sure there are no external drives are plugged in? External drives >> can sometimes re-order the way 10 sees the drives. I have had this happen >> more then once with windows 10. >> >> >> On Wed, Nov 1, 2017 at 7:15 PM, Thane K. Sherrington < >>> th...@computerconnectionltd.com> wrote: >>> >>> > I've got a laptop that started giving the dread "inaccessible boot >>> device" >>> > message in Windows 10. >>> > >>> > I've had this before, and normally I boot to the recovery environment >>> and >>> > then: >>> > >>> > Rename the current BCD and rebuild it with >>> > >>> > bootrec /fixmbr >>> > bootrec /fixboot >>> > bootrec /rebuildbcd >>> > >>> > But this time, I get "access denied" when I do the bootrec /fixboot - >>> all >>> > the other commands succeed and it rebuilds the BCD, but still no >>> boot. So >>> > I'm convinced it's the fixboot part that isn't working. However, I >>> can't >>> > find any links in Google that would point in in the right direction. >>> > >>> > Any ideas? >>> > >>> > T >>> > >>> > >>> > >>> >> >> >> >> > > >
