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Ran Liveupdate to install latest version.  Upon rebooting, got blue screen.  Could not fix computer without reinstalling Windows.



Re: INACCESSIBLE BOOT DEVICE error in Windows 10

Hi @marcplot,

Sorry for the inconvenience caused. Could you please let us know if you are still facing Windows blue screen issue after updating Norton product to latest version? Also, please let us know Norton Product installed language. 

Sunil_GA | Norton Forums Administrator | Symantec Corporation

Re: INACCESSIBLE BOOT DEVICE error in Windows 10

Hi all, I had the same issue today !

Last week I had two times the following scenario:

  • I plugged-in an USB-Stick (which was not recognized, shown in Device Manager with question mark)
  • Next reboot failed with "INACCESSIBLE BOOT DEVICE"

For me it's "not a total catastrophe", because I have regular backups with Acronis True Image. But anyway, in the last days I didn't plug-in any USB-Stick and rebooting works fine all the time... until today:

  • today I didn't plug-in something on any USB-Port
  • but today I called "Live Update" manually on "Norton Security with Backup"
  • I recognized that there was a huge 100MB update downloaded with the remark I have to reboot to complete installation
  • I did the reboot and ... ARGH ... INACCESSIBLE BOOT DEVICE
  • I'm sure there was no other update done today, because I check now every day in detail what's going on with my PC (especially NO Windows Update happened today)

Please have a look at this problem ... together with Microsoft ... something went wrong with Windows <> Symantec since the Windows January Update ... see e.g. answers microsoft  (241 replies!)

One more info/tipp: I already had such "INACCESSIBLE BOOT DEVICE" boot problems "in the first week of december". Again:typically there was no Windows Update during this period (because Windows Update happened typically at second tuesday of month), but for sure Symantec Updates ... please check too what Symantec changed begin of December !


Re: INACCESSIBLE BOOT DEVICE error in Windows 10

I got this too on my wife's laptop. After Norton updated to 22.12 this morning, Norton wanted to restart. I let it do so. It got past post, then I noticed no activity on the hard drive and then the blue screen popped up, Inaccessible boot device.

I just finished doing a restore and getting all her stuff back together and applying Windows updates and it's working fine now. I have Norton on two other machines which updated without issue, so I don't know what the problem is with my wife's laptop. I'm not installing Norton on it until I hear that whatever the issue is has been resolved. 


Re: INACCESSIBLE BOOT DEVICE error in Windows 10

Hello Sunil

After reinstalling Windows 10 Pro, Norton Security Premium installed fine as well as the rest of his programs and data. He's using English. He installed it on my hubby's laptop without any issues,, all Win 10, and his bro's computer without any issue. His own computer was recently built, so I wonder if it had anything to do with the recent chip issues and fixes? At least we know he wasn't the only one who had that issue.

Have a Good Night and


Success always occurs in private and failure in full view. Windows 10 Pro 64 bit Norton Core Security Plus Core Firmware 282 I E 11 Chrome latest version.

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