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Windows 7 BSOD 0x0000007B Error: Boot Issues, HD Tune Check, FixMBR & FixBoot, AVG-Costam

Pawel1924 40792 11
Best answers LABEL_AI_GENERATED

Why do I get a Windows 7 BSOD 0x0000007B when trying to boot, and how can I fix the startup problem?

Set the SATA/controller mode in the BIOS back to the setting it originally used, because the 0x0000007B boot error is commonly caused by switching between AHCI and the other controller mode [#10616824][#10616948] If you do not remember the original setting, try the available controller modes in BIOS until Windows starts [#10616948] The thread also notes that fixboot/fixmbr were not the right fix here, since they repair earlier boot stages and do not solve this controller-mode mismatch [#10616948] The disk itself was not the issue, because the problem persisted even when the drive was connected to another computer [#10616851] The original poster later confirmed that the controller mode had been set incorrectly and that restoring it fixed everything [#10705481]
AI summary based on the discussion. May contain errors.
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  • #1 10616304
    Pawel1924
    Level 20  
    Posts: 1137
    Rate: 128
    Hello, I get bsod 0x0000007b when I try to boot.

    I checked hdtune disk, no errors. Smart has no warnings.

    When I try an emergency boot (from what I can see) it resets at "avg-costam".

    I have already tried fixmbr and fixboot.

    No effect.

    I connected the disk to the paw, I did disk checking and defragmentation.

    it didn't do anything.
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  • #2 10616322
    DriverMSG
    VIP Meritorious for electroda.pl  
    Posts: 44094
    Help: 3984
    Rate: 4883
    Provide full computer specs. Example.
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  • #3 10616342
    RADU23
    VIP Meritorious for electroda.pl  
    Posts: 20718
    Help: 2428
    Rate: 1732
    What OS ?.
  • #4 10616461
    Pawel1924
    Level 20  
    Posts: 1137
    Rate: 128
    Hello:

    Code: text Expand Select all Copy to clipboard
    
PC HP Pavilion a6150

Procesor: Intel Core 2 Quad Q6600 2.4GHz, 8MB CACHE, 1066MHz FSB
Pamięć: 2048MB (2x1024MB) DDR2, 8192MB max
Dysk: 500GB SATA 7.200rpm
Napędy optyczne: Nagrywarka DVD+/-RW DL LightScribe SATA
Karta graficzna: nVidia GeForce 8600GT 512MB PCI-e HDMI,
Karta dźwiękowa: Realtek ALC 888S High Definition 7.1 channel zint.
Komunikacja: Intel 825662DC 10/100/1000 Mb/s zint.
Gniazda rozszerzeń: 4xDIMM DDR2, 1xPCI-e x16, 2xPCI-e x1, 1xPCI, 6xSATA
Zewnętrzne porty: 6xUSB 2.0, 2xIEEE 1394 (Firewire), 2xPS2, 1xVGA, 1xRJ45, 9xAudio, 2xSPDIF


    System, windows 7 32bit.

    I fired it from the hirens and did a graphics, prock and ram test. They all turned out positively.

    Clearly the problem is with the system.
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  • #5 10616543
    GumaWP
    Level 21  
    Posts: 502
    Help: 34
    Rate: 10
    Start Windows 7 with
    installation CD, log in to
    Recovery Console and use
    Bootcfg commands to search
    available Windows installations,
    and then repair the Boot.ini file
    automatically. You can also
    try to correct the error
    with the chkdsk / r command.
  • #6 10616816
    Pawel1924
    Level 20  
    Posts: 1137
    Rate: 128
    Hello, I wrote:

    bootcfg / query
    bootcfg / rebuild
    bootcfg / default

    every time he gets an error:
    "unable to open boot.ini"

    be now "invalid syntax" pops up, but probably spells well.

    From what I read in windows 7 there is no boot.ini file.

    After typing bcdedit, I compared the entries with mine in the laptop and they are the same.


    I ran chkdsk / r.

    Nothing.
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  • #7 10616824
    DriverMSG
    VIP Meritorious for electroda.pl  
    Posts: 44094
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    Maybe you accidentally changed the SATA mode to AHCI in bios or vice versa.
  • #8 10616831
    WojtasJD
    Level 43  
    Posts: 13788
    Help: 2919
    Rate: 1586
    Pawel1924 wrote:
    I have already tried fixmbr and fixboot.


    GumaWP wrote:
    Start Windows 7 with
    installation CD, log in to
    Recovery Console and use
    Bootcfg commands to search
    available Windows installations,
    and then repair the Boot.ini file
    automatically.


    Wait a minute, are you guys talking about Windows7 here?

    Fixboot and fixmbr commands (which were not needed), boot.ini somehow don't match ...
    (bootcfg is available)

    The motherboard in this Pavilion is probably like this:
    http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=c01077641&dlc=en#N31

    Did not change controller mode in ICH9R (BIOS)? (e.g. CMOS reset).
    Did you scan your HDD for viruses etc?
  • #9 10616851
    Pawel1924
    Level 20  
    Posts: 1137
    Rate: 128
    I was restoring the default bios settings.

    I tried to run the system on another computer (I connected the muzzle to another computer)
    resets at the same time.

    What else can I do? replace some startup files?

    I will add that it detects 2 partitions for me: c- reserved by the system (~ 100mb).
    And the second d: with windows.

    Maybe I should fixboot for the system-reserved one?
  • #10 10616861
    DriverMSG
    VIP Meritorious for electroda.pl  
    Posts: 44094
    Help: 3984
    Rate: 4883
    Pawel1924 wrote:
    I was restoring the default bios settings.

    DriverMSG wrote:
    Maybe you accidentally changed the SATA mode to AHCI in bios or vice versa.


    Check.
  • Helpful post
    #11 10616948
    WojtasJD
    Level 43  
    Posts: 13788
    Help: 2919
    Rate: 1586
    Set the controller mode in the BIOS as it was originally - if you don't remember, try it - there aren't many settings.

    What fixboot again?
    You don't need it because it repairs the earlier start phase.

    Pawel1924 wrote:
    (I connected the muzzle to another computer)

    The disk is not the mouth :D and that's not a good idea.

    It would be good to find out what this "avg-something" is

    Maybe% SystemRoot% \ ntbtlog.txt will tell you something.
  • #12 10705481
    Pawel1924
    Level 20  
    Posts: 1137
    Rate: 128
    Hello, the controller mode was set incorrectly. Everything is already working.

    Thank you for all your help
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Topic summary

LABEL_AI_GENERATED
The discussion revolves around a user experiencing a Blue Screen of Death (BSOD) with error code 0x0000007B while booting Windows 7 on an HP Pavilion a6150. The user has performed various diagnostics, including checking the hard drive with HD Tune, running chkdsk, and attempting to use fixmbr and fixboot commands without success. The issue was eventually identified as a misconfiguration in the BIOS settings related to the SATA controller mode, which, when corrected, resolved the boot problem.
AI summary based on the discussion. May contain errors.
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