Re: [H] Windows 10 Boot problem
Is it an EFI-based system? Do you need to mount the EFI partition to a drive letter? https://answers.microsoft.com/en-us/windows/forum/windows_10-update/windows-10-bootrec-fixboot-access-is-denied/747c4180-7ff3-4bc2-b6cc-81e572d546df?auth=1 has something about the EFI partition if so. On 2017-11-03 10:04 AM, Thane K. Sherrington wrote: That was a good idea. I ran SpinRite (no problems found) but the bootrec /fixboot still gives "access denied". So then I cloned the drive to a brand new drive, but it's the same problem. There must be another MBR fix utility out there. T On 01/11/2017 4:39 PM, Brian Weeden wrote: 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 -- Jamie Furtner
Re: [H] Windows 10 Boot problem
That was a good idea. I ran SpinRite (no problems found) but the bootrec /fixboot still gives "access denied". So then I cloned the drive to a brand new drive, but it's the same problem. There must be another MBR fix utility out there. T On 01/11/2017 4:39 PM, Brian Weeden wrote: 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
Re: [H] Windows 10 Boot problem
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 >>> > >>> > >>> > >>> >> >> >> >> > > >
Re: [H] Windows 10 Boot problem
AHCI is on, UEFI is off (this is an older machine, upgraded from 7). These settings haven't changed. I can't boot to either Safe Mode - everything goes to inaccessible boot device. T On 01/11/2017 4:23 PM, Lubomír Čabla wrote: INACCESSIBLE_BOOT_DEVICE: 1. go into your BIOS and make sure the HDD is set to AHCI because if you have it set to IDE it will crash (and conversely) 2. are you using EFI boot mode? 3. try just this - boot to safe mode only, then select reboot and Windows should be back to normal (maybe) 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
Re: [H] Windows 10 Boot problem
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 > > >
Re: [H] Windows 10 Boot problem
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 > > >
Re: [H] Windows 10 Boot problem
INACCESSIBLE_BOOT_DEVICE: 1. go into your BIOS and make sure the HDD is set to AHCI because if you have it set to IDE it will crash (and conversely) 2. are you using EFI boot mode? 3. try just this - boot to safe mode only, then select reboot and Windows should be back to normal (maybe) 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 > > >
