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  1. #1
    Joined
    Jul 2009
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    17

    Unhappy Windows fails to boot. Can't even boot to safe mode. Help!

    Windows fails to boot. Can't even boot to safe mode. Help!

    Comodo Internet Security couldn't start properly one day. I uninstalled and restarted. Then reinstalled but failed. It asked me to restart. I was no longer able to boot into Windows after that.

    When Windows started, it went directly into Startup Repair. After about 15 minutes, it stated it failed to repair with the following errors:

    PROBLEM SIGNATURE
    Problem Event Name StartupRepairOffline
    Problem Signature 01 6.1.7600.16385
    Problem Signature 02 6.1.7600.16385
    Problem Signature 03 unknown
    Problem Signature 04 292
    Problem Signature 05 Autofailover
    Problem Signature 06 1
    Problem Signature 07 MissingOSLoader
    OS Version 6.1.7600.2.0.0.256.1

    I tried system restore but failed. The error message was as follows:
    (not exact wording since using another language)
    System restore failed while logging in to restore from the restore point.
    An unspecified error occurred during system restore. (0x80070003)

    I tried twice to boot into safe mode but failed.
    I tried to press F8 rapidly or held down F8 key once computer started . None worked. They simply went straight to the "Startup Repair" loop.

    What's up? How could I fix so it could boot again?
    Using Windows 7. Thank you.
    Last edited by masterton; 03-29-2019 at 09:24 PM.

  2. #2
    Joined
    Nov 2001
    Posts
    8,473

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    It's my recollection that you might have to run startup repair a few times.Are you running the repair from a windows install disk ?

  3. #3
    Joined
    Jul 2009
    Posts
    17

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    Quote Originally Posted by CMB View Post
    It's my recollection that you might have to run startup repair a few times.Are you running the repair from a windows install disk ?
    Not from a disk. Ran like 4-5 times but failed every time.

  4. #4
    Joined
    Apr 2012
    Location
    montreal, canada
    Posts
    371

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    Ok. So you are fuked. This has happened in my circle plenty of times. Perhaps you have lost a boot sector, perhaps it's viral, or perhaps it's a "Ghost" but ultemetly you are ••••••.

    Solution, atleast as I would do it (now as an old hat) New C: Drive. Get a friend to give make you a usb install stick (you can download the tool at microsoft.com, buy a 16 gb usb stick at the drug store) , buy a new drive (if you are broke you can get a 500gb spinning drive OR a 128gb ssd for about 60$) and move your current drive(s) to D: (E: ect) Then simply see if anything can be salvaged.

    Like I said, I'm Old Hat, I've sepent DECADES trying (and OCCASIONALLY succeeding) to fix/solve/recover everything from grade 3 homework (in 1987) to my brothers grandsons briss photos, and at the end of the day, it's if you dont have a backup, it's probably not worth recovering. PERIOD.

    Also I would recomend kicking Win 7 to the curb. You can get a Legit win10 key on ebay for about $6, and honestly M$ just wants you to keep using windows no matter what so, yea, DO THAT
    Last edited by collie man; 03-30-2019 at 02:03 AM.

  5. #5
    Joined
    Jul 2009
    Posts
    17

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    Thank you for everyone who replied.

    I created a bootable Windows 7 USB drive using Rufus with the following settings:

    Partition scheme: MBR.
    Target System type: BIOS or UEFI-CSM.
    File System: NTFS.
    Cluster Size: select the 4096 bytes(Default).

    Then I ran the startup repair from the USB drive but failed. The error was slightly different.

    PROBLEM SIGNATURE
    Problem Event Name StartupRepairOffline
    Problem Signature 01 6.1.7600.16385
    Problem Signature 02 6.1.7600.16385
    Problem Signature 03 unknown
    Problem Signature 04 -1
    Problem Signature 05 ExternalMedia
    Problem Signature 06 1
    Problem Signature 07 NoOsInstalled
    OS Version 6.1.7600.2.0.0.256.1

    What else could I try to fix it?
    I still want to fix if possible.

    If not, what is the best way to backup all program data/settings and files from the laptop in this case? Thank you.
    Last edited by masterton; 03-30-2019 at 01:33 PM.

  6. #6
    Joined
    Nov 2001
    Posts
    8,473

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    I am not sure that a startup repair from a bootable win7 usb drive is the same as from a win7 install media ????

    see this also
    https://www.sevenforums.com/tutorial...lure-boot.html
    Last edited by CMB; 03-31-2019 at 02:48 AM.

  7. #7
    Joined
    Nov 2001
    Posts
    8,473

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    sounds like it might be mbr boot manager type problems. Above link has fixes for that

    But if registry is corrupt then maybe this
    https://www.sevenforums.com/tutorial...-recovery.html

    you can also try a repair install which should keep your programs/files etc, but will probably need driver updates afterwards.
    https://www.sevenforums.com/tutorial...r-install.html

  8. #8
    Joined
    Jul 2009
    Posts
    17

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    Quote Originally Posted by CMB View Post
    I am not sure that a startup repair from a bootable win7 usb drive is the same as from a win7 install media ????

    see this also
    https://www.sevenforums.com/tutorial...lure-boot.html
    C drive is system reserved.
    D drive is actually where Windows installed.
    The laptop is 5-6 years old. It should be legacy install. That's why I formatted the USB drive as MBR / BIOS or UEFI-CSM.

    1. F8 doesn't work. I couldn't even boot.

    2. Previously I ran chkdsk from the startup repair (not from the USB drive) through command prompt. It was successful. No bad sector was found in the Windows partition (Drive D).
    I ran chkdsk via command prompt from the USB drive to check Drive C too. It was successful. No bad sector was found.

    3. When I ran the system recovery option from the USB drive, the system did not list any operating system or drive in the list. Clearly Windows partition is at Drive D, but for some reasons it failed to detect.

    This is what is normally shown, but the list is empty in my case.



    4. I tried to run the following command in the USB drive.

    I switched to drive C. Then type:
    bootrec /fixmbr
    bootrec /fixboot

    I tried to reboot. The following message showed up this time (instead of going straight to startup repair).

    Windows failed to start. A recent hardware or software change might be the cause...
    ...
    File: \Boot\BCD
    Status: 0xc000000f
    Info: An error occurred while attempting to read the boot configuration data.

    5. I tried this combination too.
    Bootrec /Fixboot
    Bootrec /Fixmbr
    Bootsect /nt60 all /MBR


    Rebooted. The same error message appeared as shown above.

  9. #9
    Joined
    Nov 2001
    Posts
    8,473

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    I don't think attempting to fix the registry will do anything if you can't see a windows partition.

    Can you run disk manager from the usb to see how that drive d shows up ? Is the boot partition active?
    Last edited by CMB; 03-31-2019 at 10:06 AM.

  10. #10
    Joined
    Jul 2009
    Posts
    17

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    Quote Originally Posted by CMB View Post
    sounds like it might be mbr boot manager type problems. Above link has fixes for that

    But if registry is corrupt then maybe this
    https://www.sevenforums.com/tutorial...-recovery.html
    In this tutorial, it states in step 13:

    The DEFAULT, SAM and SECURITY files should each be about 262,000 bytes in size.
    The SOFTWARE file should be about 26,000,000 bytes.
    The SYSTEM file should be about 9,900,000 bytes.
    The file sizes presented here are approximate estimations, and may vary depending on your system...

    The sizes of the laptop's are largely different. They are:
    DEFAULT 1,867,776
    SAM 28,672
    SECURITY 36,864
    SOFTWARE 116,654,080
    SYSTEM 27,770,880

    Should I still proceed?

  11. #11
    Joined
    Oct 2001
    Location
    Clovis,CA
    Posts
    349

    Re: Windows fails to boot. Can't even boot to safe mode. Help!

    I am a little late to this thread, but have you ran chkdsk C: and D: and watch the final status list for bad sectors? I surmise by the age of the OS that the drive is similarly old and may have bad clusters, etc. I recently moved from CA to Houston, TX and looking for a local job is consuming most of my time. My wife and I are making the move in shifts.

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