How can I fix a Windows 10 error .. inaccessible boot device?

[Windows Central Question]

windows 10 error ... inaccessible boot device

after upgrade to windows 10 it is not starting up ..it is in never ending loops of restart .it shows inaccessible boot device..

what to do now?help plz

 

[Claude Pichot]

Re: windows 10 error ... inaccessible boot device

Make a restart and keep f8 on till end.

It work for me and I never had the problem again.

 

[carraig]

In BIOS, try change your SATA controller mode from IDE to AHCI... or, from AHCI to IDE.

 

[anon(5327127)]

In BIOS, try change your SATA controller mode from IDE to AHCI... or, from AHCI to IDE.

That will probably end with a blue screen and a complete re-install of windows.

OP: Can you press F8 at all? Enter Safe mode etc

 

[Peter Pheasey]

i have the same problem and F8 doesnt do anything, USB doesnt seem to be recognised either...

 

[Tim Benjamin]

Re: windows 10 error ... inaccessible boot device

Had this happen to my Lenovo desktop when I did a reset. Had to use another computer to create a Usb boot device. On the desktop I was able to change the boot device to the Usb port, and upon reboot it reloaded W10. Microsoft support was no help, told me it was my fault I didn't have a recovery disc. My desktop had a recovery partition, but I couldn't access it because of the inaccessible boot device loop. I now am keeping a bootable Usb stick just in case.

 

[Peter Pheasey]

f2 on boot up works, have changed boot order just need to create the boot disk. will my recovery disk for my desktop work on my laptop though? same make but would have different power options

 

[vt12]

I had this happen to me out of the blue on my (originally Vista) desktop. Turned out that the BIOS was set to RAID rather than AHCI. I reset it to AHCI and the computer worked fine without any data loss or problems.