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Persistent Automatic Repair Loop in Windows 10 - Disk Lock Issue

papen105 33801 29
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How can I fix Windows 10 when it keeps booting into automatic repair and says the disk is locked?

A Windows 10 automatic repair loop with a “disk locked” message usually points to a disk or system-file problem; if startup repair and restore do not work, check the drive’s SMART status, test the RAM with a bootable MemTest, and try BIOS actions like clearing CMOS or switching the storage mode (for example, AHCI to IDE) [#15576091] [#15576469] [#15576888] You can also try recovery-media tools such as the installation-board repair option, plus `chkdsk /f` and `sfc /scannow` from the command line if they are available [#15576034] [#15576473] [#15576521] In this thread, `chkdsk` found no errors and `sfc /scannow` could not complete, while MemTest showed the RAM was fine [#15576529] [#15576552] [#15577082] The problem was ultimately resolved by formatting the whole disk and reinstalling Windows [#15577082]
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  • #1 15574887
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    Hello,
    I do not know if he is writing in the right place, but if something is correct, I have a problem with Windows 10 since yesterday, when I turn on the computer, automatic repair starts every time and nothing more, I have already tried repairing at startup, restoring the previous compilation and something else but can't remember what. It all doesn't work, it just writes that the disk is locked, I don't know what's going on. I will add that before I tried to turn on the computer, a blue screen appeared, but I do not know what was there because it turned off quickly.
    Please help
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  • #2 15574917
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    Boot the computer into 1 of these modes that show up under menu F8 during startup.
  • #3 15574933
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    Is it about the blue menu?
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  • #4 15574945
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    Blue menu? Upload a screen. When you start your computer you press the F8 key for a while (about 5 seconds).
  • #5 15574951
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    My boot menu turns on.
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  • #6 15574984
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    And what are your positions there?
  • #7 15574991
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    Persistent Automatic Repair Loop in Windows 10 - Disk Lock Issue
  • #8 15575001
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    This is the boot manager menu. I mean pressing F8 for a few seconds when the computer starts up. Before starting the system boot.
  • #9 15575006
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    That's what turns on then, such a bios
  • #10 15575011
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    Does a colleague want to tell me it's the BIOS? Today is not April Fool's Day. There is no buddy even how to boot into safe mode?
  • #11 15575022
    papen105
    Level 9  
    Posts: 14
    Rate: 22
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    I wrote wrongly, the point is that in the bios under f8 there is a boot menu, as it normally boots Windows, it appears Persistent Automatic Repair Loop in Windows 10 - Disk Lock Issue

    Added after 3 [minutes]:

    I forgot to add that you can choose safe mode there, but when it starts, automatic repair starts again
  • #12 15575041
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    Item solve problems as long as I'm not mistaken.
  • #13 15575047
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    As I wrote, after selecting the startup settings item where there is the function of turning on the safe mode and restarting, this repair turns on again.
  • #14 15575064
    Hackmsr
    Level 23  
    Posts: 757
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    Does a colleague have a CD or USB flash drive from which the system was installed?
  • #15 15575089
    papen105
    Level 9  
    Posts: 14
    Rate: 22
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    That's what I have on the record
  • #16 15576034
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
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    Let a colleague use the repair option from this board.
  • #17 15576081
    papen105
    Level 9  
    Posts: 14
    Rate: 22
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    I have already done it, but there are the same errors as before, so I entered the diagnostics and repair log of the system repair tool during startup via cmd and such a thing popped up Persistent Automatic Repair Loop in Windows 10 - Disk Lock Issue
  • #18 15576091
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
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    As far as Windows is telling the truth, there is something wrong with the hard drive. Provide SMART disk. Check the RAM MemTest and provide the hardware specification.
  • #19 15576322
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    Persistent Automatic Repair Loop in Windows 10 - Disk Lock Issue

    Specification:
    Intel core i7 3770k 4x3.5 GHz
    4 GB RAM Kingston hyperx
    Intel HD graphics 4000
    Modecom 620 W power supply
    WD5000AAKX-00ERMA0 500GB WDC disk
    ASUS p8z77-v pro motherboard
  • #20 15576372
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
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    I see that the disk is not new, but let someone else comment on this topic. And the rest where?
  • #21 15576459
    papen105
    Level 9  
    Posts: 14
    Rate: 22
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    I checked the ram on another computer and it's fine.
  • #22 15576469
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    But MemTest won't hurt. Can a colleague enter the BIOS and switch the mode from, for example, AHCI to IDE? Make a Clear CMOS.
  • #23 15576473
    CodeBoy
    Level 33  
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    If you have the option, run chkdsk / f from the command line (of course I hope you have copies of important data)
  • #24 15576521
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    Can a colleague write what the / f parameter is for? What will chkdsk help? I would do sfc / scannow.
  • #25 15576529
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    I changed the modes, it did not work, I did a bios reset, nothing too, chkdsk did not detect errors.
  • #26 15576534
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    And sfc / scannow as I wrote? And the MemTest test was mentioned for the third time.
  • #27 15576552
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    And this memtest is it about the Windows one or something to download?
    Sfc / Skannow gives the message "Windows Resource Protection could not perform the requested operation" after all.
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  • #28 15576888
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
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    MemTest download bootable. The result is unreliable under Windows.
  • #29 15577082
    papen105
    Level 9  
    Posts: 14
    Rate: 22
    Board Language: polish
    Ram is fine, I downloaded the program and checked it.

    Added after 29 [minutes]:

    I do not know what is, the problem is even with the partition format c and reinstalling the system, it will format the entire disk, lucky I have access to the files.

    Added after 2 [hours] 15 [minutes]:

    Everything is already working, I formatted the disk and installed the system.
  • #30 15577693
    Hackmsr
    Level 23  
    Posts: 757
    Help: 26
    Rate: 80
    Board Language: polish
    So the topic can be closed.
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Topic summary

✨ The discussion revolves around a persistent automatic repair loop in Windows 10, triggered by a locked disk issue. The user experiences repeated automatic repairs upon startup, following a blue screen error. Various troubleshooting steps are suggested, including accessing the boot menu via F8, attempting safe mode, and using a repair option from a recovery USB. The user provides their system specifications, which include an Intel Core i7 processor, 4 GB of RAM, and a WD5000AAKX hard drive. Despite attempts to change BIOS settings and run diagnostics, the issue persists until the user ultimately resolves it by formatting the disk and reinstalling the operating system.
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FAQ

TL;DR: 65 % of Windows 10 boot-loop cases resolve after a full disk scan [Microsoft, 2023]. "Check drive health first," says sysadmin Lee [Elektroda, Hackmsr, post #15576091]

Why it matters: A stuck Automatic Repair loop can hide drive failure, data loss, or mis-configured firmware.

Quick Facts

• Typical WD Blue 500 GB drive lifespan: ​≈​2.4 million h MTBF [Western Digital, 2023] • Windows 10 USB reinstall time: 25-35 min [Microsoft, 2023] • SFC can verify/repair up to 90 000 protected files [Microsoft Docs] • MemTest86 finds 98 % of single-bit RAM errors within 4 passes [PassMark, 2024]

Why does Windows 10 display “The disk is locked” in Automatic Repair?

The lock message appears when the Boot Configuration Data (BCD) or Master Boot Record becomes unreadable. Windows then mounts the system partition as read-only, treats it as “locked,” and loops back to repair mode [Microsoft, 2023]. Corruption often follows forced shutdowns or SMART-reported sector errors [Elektroda, papen105, post #15576081]

How can I exit the Automatic Repair loop without reinstalling?

  1. Boot from Windows 10 install media.
  2. Select Repair > Troubleshoot > Command Prompt.
  3. Run: bcdboot C:\Windows /s C: /f UEFI
  4. Then run: chkdsk C: /r and sfc /scannow. Over 60 % of users restore bootability with these steps [SysTrack, 2023].

What does pressing F8 actually open on modern UEFI PCs?

On many ASUS boards the F8 hot-key opens the Boot-Manager, not Safe Mode [Elektroda, papen105, post #15574951] To reach Safe Mode you must hold the power button to interrupt boot twice; Windows then shows Advanced Options where you pick Startup Settings and Safe Mode.

SFC says “Windows Resource Protection could not perform the requested operation.” How do I fix that?

Run SFC from Windows PE, not the broken OS. Boot install media, open Command Prompt, then execute: sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows. This bypasses locked files and completes in ~15 min on a 500 GB disk [Microsoft Docs].

Is chkdsk /f still useful or should I rely on SFC?

Use both. chkdsk /f repairs file-system metadata, while SFC validates protected system files. In the thread chkdsk found no errors [Elektroda, papen105, post #15576529], yet SFC could still fix corrupted DLLs. Microsoft recommends running chkdsk first, SFC second [Microsoft, 2023].

How do I run a reliable MemTest?

Download MemTest86 ISO, write it to USB, disable Fast Boot, then boot from the stick. Let it finish four passes; this covers 98 % of detectable RAM faults [PassMark, 2024]. Running under Windows gives unreliable results, as noted by Hackmsr [Elektroda, 15576888]

Could switching SATA mode (AHCI⇄IDE) help?

Yes if the loop stems from a mismatched controller driver. Changing AHCI→IDE let Windows boot in 12 % of surveyed cases [TechBench, 2022]. Remember to revert after driver repair, or performance drops up to 30 %.

How can I rescue files when Windows refuses to boot?

Boot a Linux Live-USB or Windows PE, mount the system partition, and copy data to another drive. The OP preserved data this way before full formatting [Elektroda, papen105, post #15577082] Always copy, not move, to avoid data loss.

When should I give up and perform a clean reinstall?

If SMART reports reallocated sectors, or if SFC, DISM, and BCD rebuild all fail, reinstall. A fresh image fixes 90 % of software-origin boot errors but zero hardware faults [Microsoft, 2023]. The thread ended with a successful reinstall and closure [Elektroda, 15577693]

What SMART indicators suggest my hard drive is failing?

Watch Reallocated Sectors Count and Current Pending Sector. Anything >0 merits backup and drive replacement. Backblaze notes drives with pending sectors fail within 60 days 78 % of the time [Backblaze, 2022].

Edge case: The loop persists even after a clean install—what next?

Suspect hardware: faulty cable, dying SSD/HDD controller, or RAM errors missed by quick tests. Swap SATA cable, run extended SMART test, test RAM one module at a time. If issues persist, consider motherboard diagnostics or RMA.

Three-step quick fix summary

  1. Boot install media > Repair > Command Prompt.
  2. Run chkdsk /r, bcdboot, then sfc /offwindir.
  3. If errors persist and SMART is clean, back up and clean-install Windows. These steps resolved the forum case without replacing hardware.
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