"Boot selection failed because a required device is inaccessible"


  1. Posts : 4
    Windows 7 Ultimate x64
       #1

    "Boot selection failed because a required device is inaccessible"


    Just installed Avira antivirus and rebooted to complete the installation. I am getting the error "Boot selection failed because a required device is inaccessible" whenever I attempt to boot. I have tried using the Windows 7 disc to repair but it does not work as it runs for a few seconds then instructs me to reboot.

    The hard drive was initially not appearing but luckily I can now access all my files from this OS, however I would really like to gain access to my main OS again. I have also reset the CMOS but it hasn't changed anything.

    Any help would be very much appreciated. Thank you. Sorry if I posted this in the wrong section.
      My Computer


  2. Posts : 28,845
    Win 8 Release candidate 8400
       #2

    Arfe said:
    Just installed Avira antivirus and rebooted to complete the installation. I am getting the error "Boot selection failed because a required device is inaccessible" whenever I attempt to boot. I have tried using the Windows 7 disc to repair but it does not work as it runs for a few seconds then instructs me to reboot.

    The hard drive was initially not appearing but luckily I can now access all my files from this OS, however I would really like to gain access to my main OS again. I have also reset the CMOS but it hasn't changed anything.

    Any help would be very much appreciated. Thank you. Sorry if I posted this in the wrong section.
    Um, remove Avira.
      My Computer


  3. Posts : 4
    Windows 7 Ultimate x64
    Thread Starter
       #3

    Have done but it seems to have modified something which is preventing the primary OS to be booting up.
      My Computer


  4. Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       #4

    do a startup repair and reboot after each repair. repair it 3 times.
      My Computer


  5. Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       #5

    Arfe said:
    Have done but it seems to have modified something which is preventing the primary OS to be booting up.
    How did you remove avira anti4us if OS is not booting? Did you do system restore from recovery environment?
      My Computer


  6. Posts : 4
    Windows 7 Ultimate x64
    Thread Starter
       #6

    Kaktussoft said:
    Arfe said:
    Have done but it seems to have modified something which is preventing the primary OS to be booting up.
    How did you remove avira anti4us if OS is not booting?
    I can still access the files through my secondary OS so went ahead and deleted all the Avira stuff. Quite a noob so maybe I haven't removed it completely?
      My Computer


  7. Posts : 28,845
    Win 8 Release candidate 8400
       #7

    Arfe said:
    Kaktussoft said:
    Arfe said:
    Have done but it seems to have modified something which is preventing the primary OS to be booting up.
    How did you remove avira anti4us if OS is not booting?
    I can still access the files through my secondary OS so went ahead and deleted all the Avira stuff. Quite a noob so maybe I haven't removed it completely?

    Malware apps are notoriously difficult to removed and must be removed by using the appropriate removal tool. Use the tool and if you still are having problems you may need to re-install it just to remove it completely
      My Computer


  8. Posts : 4
    Windows 7 Ultimate x64
    Thread Starter
       #8

    zigzag3143 said:
    Arfe said:
    Kaktussoft said:
    How did you remove avira anti4us if OS is not booting?
    I can still access the files through my secondary OS so went ahead and deleted all the Avira stuff. Quite a noob so maybe I haven't removed it completely?

    Malware apps are notoriously difficult to removed and must be removed by using the appropriate removal tool. Use the tool and if you still are having problems you may need to re-install it just to remove it completely
    Cheers will do that now :)
      My Computer


  9. Posts : 10,796
    Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
       #9

    Never ever delete files that way! Windows still thinks it's installed and has a lot of settings pointing to it. Probably you removed the unistall file as well (?)

    Try system restore in recovery environment. So go back in time a few days. (to the time your pc was working fine)
      My Computer


  10. Posts : 28,845
    Win 8 Release candidate 8400
       #10

    Arfe said:
    zigzag3143 said:
    Arfe said:
    I can still access the files through my secondary OS so went ahead and deleted all the Avira stuff. Quite a noob so maybe I haven't removed it completely?

    Malware apps are notoriously difficult to removed and must be removed by using the appropriate removal tool. Use the tool and if you still are having problems you may need to re-install it just to remove it completely
    Cheers will do that now :)
    Good Luck
      My Computer


 

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